600 Projects, Experiments, Builds, Challenges, and Adventures
A practical idea catalog for new operators, experienced hams, makers, programmers, electronics experimenters, clubs, educators, and anyone who has ever wondered what comes after getting the license.
Amateur radio has an image problem. Ask someone outside the hobby what hams do and the answer often collapses into one picture: people talking into microphones. That is certainly part of amateur radio, but it is nowhere close to the whole thing.
Amateur radio can be operating, electronics, software development, networking, satellites, embedded systems, data analysis, emergency communications, competitive operating, citizen science, outdoor adventure, antenna engineering, digital signal processing, automation, fabrication, restoration, radio astronomy, or simply talking to another human being through a radio you understand.
This guide is deliberately huge. The internet has plenty of "Top 10 Ham Radio Projects" lists. This is not one of them. The goal here is to show the breadth of the hobby and give you enough ideas that you can keep coming back whenever you need a new rabbit hole.
The most useful way to read it is not from beginning to end. Scan the sections that sound like you. If you are a programmer, jump to software, SDR, networking, and automation. If you like building, start with antennas, RF electronics, fabrication, and test equipment. If you want to get outside, look at POTA, SOTA, satellites, fox hunting, and balloons. If you like science, go directly to propagation, weak-signal work, and radio astronomy.
There is no single correct way to do amateur radio. The better question is: What do you want to build, learn, measure, or try next?
Project Markers
Throughout the catalog, two markers call out especially useful entry points:
- Star means Great First Project. The project has a relatively low barrier to entry, teaches transferable skills, produces a satisfying result, and does not require a long chain of prerequisites.
- RX radio waves means No Transmit Required. The project can be meaningfully completed in a receive-only, bench, software, simulation, analysis, restoration, or non-transmitting form without an amateur license. Transmitting on amateur frequencies still requires the appropriate license and privileges.
A project can carry both markers. Those are especially good choices for someone who is curious about amateur radio but has not earned a license yet.
How To Read The Catalog
- Difficulty: Beginner, Intermediate, Advanced, or Expert. This is approximate. A project can often be simplified or expanded.
- Cost: $ generally means under about $50, $$ about $50-$200, $$$ about $200-$750, and $$$$ means the sky, your tower, or your spouse may become involved.
- Skills: The primary skills the project develops. Most projects cross several disciplines.
- License: U.S.-oriented shorthand only. Receiving, building, simulation, and bench testing often do not require an amateur license, while transmitting on amateur frequencies does. Actual privileges depend on license class, band, mode, frequency, power, control method, and current FCC rules. Verify the rules before transmitting.
Project catalog
600 projects across 30 ways to explore ham radio.
Use the filters to narrow the list, jump by section, or let the guide pick something that matches your current curiosity.
20 projects
Getting On the Air & Traditional Operating
Start with the core activity: putting a signal on the air and learning how operators, bands, propagation, etiquette, and station design fit together.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 1 | Build your first HF station | ★ | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document your first HF station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 2 | Build a VHF/UHF base station | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a VHF/UHF base station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 3 | Make a long-distance simplex contact | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Make a long-distance simplex contact and document the station, conditions, antenna, power, and technique that made it possible. Then change one variable and try to improve the result. | ||||||
| 4 | Work All States | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Turn work all states into a measurable operating goal. Track progress, learn which bands and propagation paths matter, and use the project to improve operating technique. | ||||||
| 5 | Chase DXCC entities | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Chase DXCC entities as a structured operating goal. Learn spotting, timing, propagation, and efficient station technique while keeping a log of progress. | ||||||
| 6 | Try QRP operating | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try QRP operating as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 7 | Try QRPp operating | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try QRPp operating as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 8 | Learn Morse code | | Beginner | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Learn Morse code as a practical skill rather than a memorization exercise. Build recognition speed gradually, copy real signals, and work toward receiving whole words by sound. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 9 | Make your first CW contact | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Make your first CW contact and document the station, conditions, antenna, power, and technique that made it possible. Then change one variable and try to improve the result. | ||||||
| 10 | Build a CW-only station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a CW-only station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 11 | Enter an amateur radio contest | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Enter an amateur radio contest with a specific goal, such as completing a set number of contacts, learning search-and-pounce technique, or operating a new band. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 12 | Build a contest station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a contest station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 13 | Try HF ragchewing | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try HF ragchewing as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 14 | Check into a local net | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Check into a local net, learn its format and etiquette, and practice concise, clear radio communication in a structured setting. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 15 | Serve as net control | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Serve as net control and practice directing traffic, keeping a log, handling check-ins, and maintaining a clear rhythm on the air. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 16 | Create a specialty net | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a specialty net and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 17 | Try AM operation | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try AM operation as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 18 | Operate mobile HF | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Operate mobile HF and learn the practical differences in equipment, propagation, etiquette, and technique compared with your normal operating style. | ||||||
| 19 | Experiment with 6 meters | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with 6 meters, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 20 | Try 160-meter operating | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try 160-meter operating as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
20 projects
Antennas & Feed Systems
Antennas turn theory into something you can cut, solder, raise, measure, tune, compare, and improve. They are one of the cheapest ways to make a station dramatically better.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 21 | Build a half-wave dipole | ★ | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a half-wave dipole. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 22 | Build an end-fed half-wave | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an end-fed half-wave. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 23 | Build a quarter-wave vertical | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a quarter-wave vertical. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 24 | Build a ground-plane antenna | ★ | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a ground-plane antenna. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 25 | Build a Yagi | | Intermediate | $$–$$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a yagi. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 26 | Build a Moxon | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a moxon. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 27 | Build a magnetic loop | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a magnetic loop. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 28 | Build a portable linked dipole | ★ | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a portable linked dipole. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 29 | Build a fan dipole | ★ | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a fan dipole. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 30 | Build an inverted-V | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an inverted-v. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 31 | Build a delta loop | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a delta loop. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 32 | Build a full-wave loop | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a full-wave loop. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 33 | Build a J-pole | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a j-pole. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 34 | Build a Slim Jim | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a slim jim. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 35 | Build a tape-measure Yagi | ★ | Intermediate | $$–$$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a tape-measure yagi. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 36 | Build a phased vertical array | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a phased vertical array. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 37 | Experiment with antenna traps | | Beginner | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with antenna traps, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 38 | Build a common-mode choke | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a common-mode choke. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 39 | Wind a balun or unun | | Beginner | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Use wind a balun or unun as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 40 | Compare feedline types | | Beginner | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Compare feedline types using the same conditions and repeatable measurements. Keep enough data to separate real improvement from normal propagation or measurement variation. | ||||||
20 projects
Portable, POTA, SOTA & Adventure Radio
Take radio away from the desk. Portable operating adds batteries, weather, logistics, lightweight antennas, field logging, and the satisfaction of making a station work almost anywhere.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 41 | Activate a POTA park | ★ | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use activate a POTA park as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 42 | Hunt POTA activators | ★ | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use hunt POTA activators as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 43 | Activate a SOTA summit | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use activate a SOTA summit as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 44 | Chase SOTA activators | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Chase SOTA activators as a structured operating goal. Learn spotting, timing, propagation, and efficient station technique while keeping a log of progress. | ||||||
| 45 | Operate Field Day | ★ | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Operate field day and learn the practical differences in equipment, propagation, etiquette, and technique compared with your normal operating style. | ||||||
| 46 | Build a backpack HF station | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a backpack HF station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 47 | Build a battery-powered field station | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a battery-powered field station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 48 | Build a solar-powered station | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a solar-powered station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 49 | Create an ammo-can station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop an ammo-can station and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 50 | Build a bicycle-mobile station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a bicycle-mobile station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 51 | Operate pedestrian mobile | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Operate pedestrian mobile and learn the practical differences in equipment, propagation, etiquette, and technique compared with your normal operating style. | ||||||
| 52 | Operate from a boat or kayak | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Operate from a boat or kayak and learn the practical differences in equipment, propagation, etiquette, and technique compared with your normal operating style. | ||||||
| 53 | Design an ultralight QRP kit | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use design an ultralight QRP kit as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 54 | Build a rapid-deployment mast | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a rapid-deployment mast. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 55 | Try winter field operating | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try winter field operating as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 56 | Create a one-bag radio station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a one-bag radio station and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 57 | Run a group POTA activation | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Plan and run a group POTA activation with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 58 | Try a multi-park rove | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try a multi-park rove as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 59 | Operate from a historic site | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Operate from a historic site and learn the practical differences in equipment, propagation, etiquette, and technique compared with your normal operating style. | ||||||
| 60 | Build a field logging workflow | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a field logging workflow. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
20 projects
Digital Modes
A computer and radio can exchange information at signal levels where ordinary voice may fail. Digital modes are an accessible gateway into weak-signal work, software integration, automation, and propagation analysis.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 61 | Make an FT8 contact | ★ | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Make an ft8 contact and document the station, conditions, antenna, power, and technique that made it possible. Then change one variable and try to improve the result. | ||||||
| 62 | Try FT4 | ★ | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try ft4 as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 63 | Use JS8Call | ★ | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use use js8call as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 64 | Operate PSK31 | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Operate psk31 and learn the practical differences in equipment, propagation, etiquette, and technique compared with your normal operating style. | ||||||
| 65 | Operate RTTY | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Operate rtty and learn the practical differences in equipment, propagation, etiquette, and technique compared with your normal operating style. | ||||||
| 66 | Try Olivia | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try olivia as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 67 | Explore MFSK | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Learn the equipment, software, terminology, and operating practices behind mfsk. Start by receiving or observing where practical, then add transmitting once you understand the workflow. | ||||||
| 68 | Experiment with Hellschreiber | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with hellschreiber, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 69 | Try Feld Hell | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try feld hell as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 70 | Use VARA HF | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use use vara HF as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 71 | Use VARA FM | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use use vara FM as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 72 | Compare weak-signal modes | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Compare weak-signal modes using the same conditions and repeatable measurements. Keep enough data to separate real improvement from normal propagation or measurement variation. | ||||||
| 73 | Build a dedicated digital station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a dedicated digital station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 74 | Automate WSJT-X logging | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use automate wsjt-x logging as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 75 | Map PSKReporter reception | | Beginner | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Use map pskreporter reception as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 76 | Measure minimum usable signal | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Measure minimum usable signal with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 77 | Compare antennas with digital reports | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Compare antennas with digital reports using the same conditions and repeatable measurements. Keep enough data to separate real improvement from normal propagation or measurement variation. | ||||||
| 78 | Run multiple digital decoders | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Plan and run multiple digital decoders with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 79 | Decode W1AW digital bulletins | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use decode w1aw digital bulletins as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 80 | Create a digital-mode operating profile | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a digital-mode operating profile and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
20 projects
APRS, Packet & RF Messaging
Packet radio is not merely a historical curiosity. APRS combines packet, mapping, messaging, telemetry, weather, and position reporting, while classic AX.25 remains a playground for RF data networking.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 81 | Set up APRS on a handheld | ★ | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Configure APRS on a handheld from scratch, verify that each component works, and document the settings so the station can be rebuilt or troubleshot later. | ||||||
| 82 | Track your vehicle with APRS | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Track your vehicle with APRS using appropriate RF, position, or orbital data. Compare predictions with observations and preserve the data for later analysis. | ||||||
| 83 | Build an APRS digipeater | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an APRS digipeater. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 84 | Build an APRS iGate | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an APRS igate. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 85 | Build a receive-only APRS station | ★ | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a receive-only APRS station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 86 | Create an APRS weather station | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop an APRS weather station and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 87 | Send APRS messages | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Send APRS messages over an amateur-radio path, then verify reception and understand the protocol, bandwidth, error handling, and station configuration involved. | ||||||
| 88 | Experiment with APRS telemetry | | Expert | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with APRS telemetry, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 89 | Build an APRS tracker | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an APRS tracker. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 90 | Create an APRS mapping server | | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Develop an APRS mapping server and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 91 | Write an APRS-IS client | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop an APRS-is client from a small proof of concept into a usable tool. Work with real amateur-radio data or control interfaces, handle edge cases, and publish the result if others could benefit. | ||||||
| 92 | Create APRS geofence alerts | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop APRS geofence alerts and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 93 | Build a balloon tracker | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a balloon tracker. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 94 | Track a high-altitude balloon | | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Track a high-altitude balloon using appropriate RF, position, or orbital data. Compare predictions with observations and preserve the data for later analysis. | ||||||
| 95 | Operate classic AX.25 packet | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Operate classic ax.25 packet and learn the practical differences in equipment, propagation, etiquette, and technique compared with your normal operating style. | ||||||
| 96 | Build a packet BBS | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a packet bbs. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 97 | Build a packet node | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a packet node. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 98 | Experiment with packet chat | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with packet chat, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 99 | Build a portable packet station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a portable packet station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 100 | Create an RF-only message board | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop an RF-only message board and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
20 projects
Winlink & Off-Grid Communications
Winlink provides radio email and supports operation when normal internet paths are unavailable. It is especially useful for learning message handling, field deployment, and resilient communications.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 101 | Set up Winlink Express | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Configure winlink express from scratch, verify that each component works, and document the settings so the station can be rebuilt or troubleshot later. | ||||||
| 102 | Send your first radio email | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Send your first radio email over an amateur-radio path, then verify reception and understand the protocol, bandwidth, error handling, and station configuration involved. | ||||||
| 103 | Use Winlink over HF | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use use winlink over HF as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 104 | Use Winlink over VHF/UHF | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use use winlink over VHF/UHF as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 105 | Build a portable Winlink station | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a portable winlink station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 106 | Use VARA HF with Winlink | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use use vara HF with winlink as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 107 | Use VARA FM with Winlink | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use use vara FM with winlink as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 108 | Experiment with packet Winlink | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with packet winlink, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 109 | Practice sending ICS forms | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Practice sending ics forms under realistic constraints. Record what failed, what took too long, and what should be changed before the capability is actually needed. | ||||||
| 110 | Build an off-grid message center | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an off-grid message center. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 111 | Create a Winlink go-kit | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a winlink go-kit and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 112 | Practice without commercial internet | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Practice without commercial internet under realistic constraints. Record what failed, what took too long, and what should be changed before the capability is actually needed. | ||||||
| 113 | Build a field gateway station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a field gateway station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 114 | Create a radio-email training exercise | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a radio-email training exercise and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 115 | Test message delivery under poor conditions | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use test message delivery under poor conditions as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 116 | Compare Winlink transport modes | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Compare winlink transport modes using the same conditions and repeatable measurements. Keep enough data to separate real improvement from normal propagation or measurement variation. | ||||||
| 117 | Create a portable forms workflow | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a portable forms workflow and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 118 | Build backup power for a Winlink station | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document backup power for a winlink station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 119 | Run a simulated disaster message net | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Plan and run a simulated disaster message net with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 120 | Document an emergency communications plan | | Expert | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use document an emergency communications plan as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
20 projects
Digital Voice
DMR, System Fusion, D-STAR, NXDN, and P25 combine RF with codecs, identifiers, routing, reflectors, hotspots, and network services.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 121 | Build a DMR hotspot | ★ | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a DMR hotspot. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 122 | Program a DMR codeplug | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use program a DMR codeplug as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 123 | Explore DMR talkgroups | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Learn the equipment, software, terminology, and operating practices behind DMR talkgroups. Start by receiving or observing where practical, then add transmitting once you understand the workflow. | ||||||
| 124 | Build a YSF hotspot | ★ | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a YSF hotspot. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 125 | Operate System Fusion | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Operate system fusion and learn the practical differences in equipment, propagation, etiquette, and technique compared with your normal operating style. | ||||||
| 126 | Explore D-STAR | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Learn the equipment, software, terminology, and operating practices behind d-star. Start by receiving or observing where practical, then add transmitting once you understand the workflow. | ||||||
| 127 | Explore NXDN | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Learn the equipment, software, terminology, and operating practices behind NXDN. Start by receiving or observing where practical, then add transmitting once you understand the workflow. | ||||||
| 128 | Explore amateur P25 | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Learn the equipment, software, terminology, and operating practices behind amateur P25. Start by receiving or observing where practical, then add transmitting once you understand the workflow. | ||||||
| 129 | Build a multimode hotspot | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a multimode hotspot. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 130 | Host a YSF reflector | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Host a YSF reflector and make it reachable through the intended amateur-radio path. Monitor reliability, document dependencies, and test how it behaves when ordinary internet access is removed. | ||||||
| 131 | Experiment with digital voice gateways | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with digital voice gateways, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 132 | Build a Raspberry Pi voice appliance | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a raspberry pi voice appliance. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 133 | Create a digital voice dashboard | | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Develop a digital voice dashboard and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 134 | Measure hotspot RF performance | | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Measure hotspot RF performance with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 135 | Build a portable hotspot | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a portable hotspot. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 136 | Run a digital voice net | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Plan and run a digital voice net with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 137 | Experiment with transcoding concepts | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with transcoding concepts, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 138 | Create a club digital voice guide | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a club digital voice guide and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 139 | Monitor reflector activity | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Continuously observe reflector activity, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 140 | Build redundant hotspot connectivity | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document redundant hotspot connectivity. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
20 projects
AllStar, EchoLink & VoIP
Voice-over-IP systems connect radio sites and operators through software, Linux, audio interfaces, networking, and radio control.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 141 | Build an AllStar node | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an allstar node. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 142 | Build an EchoLink node | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an echolink node. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 143 | Create a simplex AllStar node | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Develop a simplex allstar node and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 144 | Link two amateur sites | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Use link two amateur sites as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 145 | Build a portable VoIP radio node | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a portable VoIP radio node. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 146 | Create a node status dashboard | | Intermediate | $–$$ | Networking, Linux, RF | No license to build/receive; license for amateur TX |
| What you will do Develop a node status dashboard and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 147 | Add telemetry to a node | | Expert | $$$–$$$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Use add telemetry to a node as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 148 | Build a web-controlled node | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a web-controlled node. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 149 | Experiment with radio-to-IP audio | | Beginner | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with radio-to-ip audio, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 150 | Build a private lab reflector | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a private lab reflector. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 151 | Integrate a PBX in a radio lab | | Beginner | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Use integrate a pbx in a radio lab as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 152 | Create scheduled link profiles | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Develop scheduled link profiles and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 153 | Measure end-to-end audio latency | | Beginner | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Measure end-to-end audio latency with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 154 | Improve node audio levels | | Beginner | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Use improve node audio levels as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 155 | Build remote node monitoring | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document remote node monitoring. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 156 | Create a club linking system | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Develop a club linking system and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 157 | Experiment with voting receivers | | Expert | $–$$ | Networking, Linux, RF | No license to build/receive; license for amateur TX |
| What you will do Set up a controlled experiment with voting receivers, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 158 | Build redundant node networking | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document redundant node networking. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 159 | Create an audio recording lab | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Develop an audio recording lab and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 160 | Document a multi-site voice architecture | | Beginner | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Use document a multi-site voice architecture as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
20 projects
Mesh & IP Networking
Amateur spectrum can carry IP networks too. Mesh projects let networking people apply routing, servers, VoIP, video, monitoring, and resilient topology design to RF.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 161 | Build two AREDN nodes | ★ | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document two aredn nodes. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 162 | Create a point-to-point RF IP link | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Develop a point-to-point RF ip link and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 163 | Build a neighborhood amateur mesh | | Intermediate | $$–$$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a neighborhood amateur mesh. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 164 | Host a web server over RF | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Host a web server over RF and make it reachable through the intended amateur-radio path. Monitor reliability, document dependencies, and test how it behaves when ordinary internet access is removed. | ||||||
| 165 | Host chat over an RF network | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Host chat over an RF network and make it reachable through the intended amateur-radio path. Monitor reliability, document dependencies, and test how it behaves when ordinary internet access is removed. | ||||||
| 166 | Run VoIP across a mesh | | Beginner | $$–$$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Plan and run VoIP across a mesh with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 167 | Create an RF video link | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Develop an RF video link and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 168 | Host offline maps on a mesh | | Intermediate | $$–$$$ | Networking, Linux, RF | No license to build/receive; license for amateur TX |
| What you will do Host offline maps on a mesh and make it reachable through the intended amateur-radio path. Monitor reliability, document dependencies, and test how it behaves when ordinary internet access is removed. | ||||||
| 169 | Build an off-grid file server | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an off-grid file server. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 170 | Monitor RF network health | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Continuously observe RF network health, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 171 | Measure mesh latency | | Beginner | $$–$$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Measure mesh latency with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 172 | Measure mesh throughput | | Beginner | $$–$$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Measure mesh throughput with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 173 | Build a portable mesh node | | Intermediate | $$–$$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a portable mesh node. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 174 | Build a solar relay node | | Intermediate | $$–$$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a solar relay node. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 175 | Link multiple amateur sites | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Use link multiple amateur sites as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 176 | Create a mesh DNS service | | Intermediate | $$–$$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Develop a mesh dns service and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 177 | Run a PBX on an amateur mesh | | Beginner | $$–$$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Plan and run a pbx on an amateur mesh with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 178 | Build a field incident network | | Intermediate | $–$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a field incident network. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 179 | Create mesh network documentation | | Intermediate | $$–$$$ | Networking, Linux, RF | No license to build/receive; license for amateur TX |
| What you will do Develop mesh network documentation and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 180 | Design a resilient regional topology | | Expert | $$$–$$$$ | Networking, Linux, RF | Amateur license for TX; privileges vary |
| What you will do Use design a resilient regional topology as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
20 projects
Satellites & Space
Amateur satellites turn a handheld station into a space communications project. From simple reception to automated ground stations, the learning path can extend for years.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 181 | Listen to an amateur satellite | ★ | Beginner | $$–$$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Use listen to an amateur satellite as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 182 | Make an FM satellite contact | ★ | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Make an FM satellite contact and document the station, conditions, antenna, power, and technique that made it possible. Then change one variable and try to improve the result. | ||||||
| 183 | Work a linear transponder | | Beginner | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Turn work a linear transponder into a measurable operating goal. Track progress, learn which bands and propagation paths matter, and use the project to improve operating technique. | ||||||
| 184 | Build a handheld satellite station | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a handheld satellite station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 185 | Receive satellite telemetry | | Expert | $$$–$$$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Receive satellite telemetry, identify the signal correctly, decode or record it where applicable, and learn how antenna choice and local noise affect the result. | ||||||
| 186 | Decode CubeSat telemetry | | Expert | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use decode CubeSat telemetry as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 187 | Track satellite passes | | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Track satellite passes using appropriate RF, position, or orbital data. Compare predictions with observations and preserve the data for later analysis. | ||||||
| 188 | Build computer-assisted Doppler correction | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document computer-assisted Doppler correction. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 189 | Build an azimuth/elevation rotator | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an azimuth/elevation rotator. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 190 | Automate satellite antenna tracking | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use automate satellite antenna tracking as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 191 | Receive SSTV from space | ★ | Beginner | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Receive SSTV from space, identify the signal correctly, decode or record it where applicable, and learn how antenna choice and local noise affect the result. | ||||||
| 192 | Receive digital satellite data | | Beginner | $$–$$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Receive digital satellite data, identify the signal correctly, decode or record it where applicable, and learn how antenna choice and local noise affect the result. | ||||||
| 193 | Try satellite roving | | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try satellite roving as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 194 | Log satellite grids | | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use log satellite grids as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 195 | Build a portable satellite station | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a portable satellite station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 196 | Compare satellite antennas | | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Compare satellite antennas using the same conditions and repeatable measurements. Keep enough data to separate real improvement from normal propagation or measurement variation. | ||||||
| 197 | Build a satellite pass dashboard | | Intermediate | $$–$$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a satellite pass dashboard. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 198 | Create pass alerts | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop pass alerts and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 199 | Archive satellite telemetry | | Expert | $$$–$$$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Use archive satellite telemetry as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 200 | Build an automated ground station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an automated ground station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
20 projects
SDR & DSP
Software-defined radio moves filtering, demodulation, recording, analysis, and experimentation into software, making the spectrum observable in ways traditional radios rarely allow.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 201 | Build an RTL-SDR receiving station | ★ | Intermediate | $$–$$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an rtl-SDR receiving station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 202 | Create a wideband spectrum monitor | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Develop a wideband spectrum monitor and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 203 | Host a remote SDR receiver | | Intermediate | $$–$$$ | Software, Data, RF | No license to build/receive; license for amateur TX |
| What you will do Host a remote SDR receiver and make it reachable through the intended amateur-radio path. Monitor reliability, document dependencies, and test how it behaves when ordinary internet access is removed. | ||||||
| 204 | Build a WebSDR-style receiver | | Intermediate | $$–$$$ | Software, Data, RF | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a websdr-style receiver. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 205 | Record IQ data | | Beginner | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Use record iq data as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 206 | Replay and analyze IQ recordings | | Intermediate | $–$$ | Software, Data, RF | No license to build/receive; license for amateur TX |
| What you will do Use replay and analyze iq recordings as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 207 | Build a waterfall archive | | Intermediate | $–$$ | Software, Data, RF | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a waterfall archive. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 208 | Monitor band occupancy | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Continuously observe band occupancy, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 209 | Measure the local noise floor | | Beginner | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Measure the local noise floor with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 210 | Create an interference detector | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Develop an interference detector and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 211 | Decode signals with GNU Radio | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Use decode signals with gnu radio as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 212 | Design a digital filter | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Use design a digital filter as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 213 | Write a demodulator | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Develop a demodulator from a small proof of concept into a usable tool. Work with real amateur-radio data or control interfaces, handle edge cases, and publish the result if others could benefit. | ||||||
| 214 | Experiment with coherent receivers | | Expert | $–$$ | Software, Data, RF | No license to build/receive; license for amateur TX |
| What you will do Set up a controlled experiment with coherent receivers, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 215 | Build a multi-SDR monitoring station | | Intermediate | $$–$$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a multi-SDR monitoring station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 216 | Create a signal-classification experiment | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Develop a signal-classification experiment and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 217 | Measure receiver dynamic range | | Beginner | $–$$ | Software, Data, RF | No license to build/receive; license for amateur TX |
| What you will do Measure receiver dynamic range with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 218 | Build an SDR panadapter | | Intermediate | $$–$$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an SDR panadapter. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 219 | Create automated signal alerts | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Develop automated signal alerts and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 220 | Explore passive-radar concepts | | Expert | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Learn the equipment, software, terminology, and operating practices behind passive-radar concepts. Start by receiving or observing where practical, then add transmitting once you understand the workflow. | ||||||
20 projects
Arduino, ESP32 & Raspberry Pi
Small computers and microcontrollers are ideal glue between radios, sensors, relays, displays, GPS receivers, networks, and automation.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 221 | Build a station status display | ★ | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a station status display. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 222 | Build an SWR monitor | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an SWR monitor. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 223 | Build an RF power meter | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an RF power meter. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 224 | Create a remote antenna switch | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Develop a remote antenna switch and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 225 | Build a rotor controller | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a rotor controller. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 226 | Build a GPS-disciplined station clock | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a GPS-disciplined station clock. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 227 | Create environmental telemetry | | Expert | $$$–$$$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Develop environmental telemetry and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 228 | Monitor repeater-site temperature | | Intermediate | $$$–$$$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Continuously observe repeater-site temperature, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 229 | Monitor battery voltage | | Intermediate | $$–$$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Continuously observe battery voltage, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 230 | Monitor solar charging | | Intermediate | $$–$$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Continuously observe solar charging, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 231 | Build a programmable CW keyer | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a programmable CW keyer. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 232 | Create a Morse beacon | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Develop a morse beacon and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 233 | Build a fox transmitter | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a fox transmitter. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 234 | Build an APRS tracker | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an APRS tracker. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 235 | Build a touchscreen station controller | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a touchscreen station controller. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 236 | Create a Raspberry Pi radio appliance | | Intermediate | $$–$$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Develop a raspberry pi radio appliance and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 237 | Build a Wi-Fi station control panel | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a Wi-Fi station control panel. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 238 | Create an ESP32 telemetry node | | Expert | $$$–$$$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Develop an ESP32 telemetry node and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 239 | Build a relay-control interface | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a relay-control interface. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 240 | Create a station watchdog | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Develop a station watchdog and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
20 projects
Coding & Software Development
Amateur radio generates events, logs, spots, telemetry, positions, audio, IQ data, and control interfaces. That makes it fertile ground for programmers.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 241 | Write a logging program | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Develop a logging program from a small proof of concept into a usable tool. Work with real amateur-radio data or control interfaces, handle edge cases, and publish the result if others could benefit. | ||||||
| 242 | Build a web-based logbook | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a web-based logbook. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 243 | Create ADIF utilities | ★ | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Develop adif utilities and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 244 | Automate log uploads | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Use automate log uploads as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 245 | Build a callsign lookup tool | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a callsign lookup tool. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 246 | Create a propagation dashboard | | Intermediate | $–$$ | Software, Data, RF | No license to build/receive; license for amateur TX |
| What you will do Develop a propagation dashboard and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 247 | Analyze your QSO history | | Intermediate | $–$$ | Software, Data, RF | No license to build/receive; license for amateur TX |
| What you will do Collect enough data to analyze your qso history rather than relying on impressions. Graph trends, compare conditions, and look for repeatable relationships. | ||||||
| 248 | Map every station you worked | | Beginner | $–$$ | Software, Data, RF | No license to build/receive; license for amateur TX |
| What you will do Use map every station you worked as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 249 | Create live contest statistics | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Develop live contest statistics and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 250 | Write CAT-control software | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Develop CAT-control software from a small proof of concept into a usable tool. Work with real amateur-radio data or control interfaces, handle edge cases, and publish the result if others could benefit. | ||||||
| 251 | Control multiple radios in software | | Beginner | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Use control multiple radios in software as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 252 | Write an APRS parser | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Develop an APRS parser from a small proof of concept into a usable tool. Work with real amateur-radio data or control interfaces, handle edge cases, and publish the result if others could benefit. | ||||||
| 253 | Build an APRS web map | | Intermediate | $–$$ | Software, Data, RF | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document an APRS web map. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 254 | Create a repeater-directory app | | Intermediate | $$$–$$$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Develop a repeater-directory app and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 255 | Build net-control software | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document net-control software. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 256 | Create a station telemetry API | | Expert | $$$–$$$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Develop a station telemetry api and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 257 | Build an MQTT radio-event bus | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an MQTT radio-event bus. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 258 | Create real-time QSO analytics | | Intermediate | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Develop real-time qso analytics and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 259 | Combine RBN and PSKReporter data | | Beginner | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Use combine RBN and pskreporter data as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 260 | Contribute to an open-source ham project | | Beginner | $–$$ | Software, Data, RF | Amateur license for TX; privileges vary |
| What you will do Use contribute to an open-source ham project as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
20 projects
Station Automation & Remote Control
Automation turns a collection of radios and accessories into a system. Start with a relay or profile and grow toward remote, monitored, fault-tolerant stations.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 261 | Automatically select antennas by band | | Beginner | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Use automatically select antennas by band as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 262 | Build one-button station profiles | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document one-button station profiles. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 263 | Automate a rotor | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Use automate a rotor as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 264 | Create automatic Doppler tuning | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Develop automatic Doppler tuning and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 265 | Record band conditions automatically | | Beginner | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Use record band conditions automatically as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 266 | Alert on desired callsigns | | Beginner | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Use alert on desired callsigns as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 267 | Monitor SWR continuously | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Continuously observe SWR continuously, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 268 | Build over-temperature shutdown | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document over-temperature shutdown. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 269 | Monitor station power consumption | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Continuously observe station power consumption, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 270 | Automate battery management | | Expert | $$$–$$$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Use automate battery management as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 271 | Build a remote HF station | | Intermediate | $$–$$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a remote HF station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 272 | Control a station from a browser | | Beginner | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Use control a station from a browser as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 273 | Create a station REST API | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Develop a station REST API and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 274 | Build a station status dashboard | | Intermediate | $–$$ | Embedded, Electronics, RF | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a station status dashboard. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 275 | Automate propagation reports | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Use automate propagation reports as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 276 | Record selected signals automatically | | Beginner | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Use record selected signals automatically as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 277 | Build a headless receiving site | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a headless receiving site. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 278 | Create a self-monitoring repeater site | | Intermediate | $$$–$$$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Develop a self-monitoring repeater site and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 279 | Automate station startup and shutdown | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Use automate station startup and shutdown as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 280 | Build redundant remote-control paths | | Intermediate | $–$$ | Embedded, Electronics, RF | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document redundant remote-control paths. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
20 projects
Direction Finding & Fox Hunting
Direction finding combines antennas, signal measurement, maps, motion, and detective work. It scales from a children’s fox hunt to distributed receiver networks.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| What you will do Design, assemble, test, and document a hidden fox transmitter. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 282 | Organize a fox hunt | ★ | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Organize a fox hunt with clear rules, safety considerations, scoring, and enough technical challenge to be fun for both new and experienced operators. | ||||||
| 283 | Build a tape-measure DF Yagi | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a tape-measure df yagi. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 284 | Build a close-in attenuator | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a close-in attenuator. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 285 | Practice body-fade direction finding | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Practice body-fade direction finding under realistic constraints. Record what failed, what took too long, and what should be changed before the capability is actually needed. | ||||||
| 286 | Build a Doppler RDF unit | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a Doppler rdf unit. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 287 | Combine GPS with bearings | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use combine GPS with bearings as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 288 | Plot bearings on a map | | Beginner | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Use plot bearings on a map as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 289 | Build distributed receiving stations | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document distributed receiving stations. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 290 | Experiment with TDOA concepts | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with tdoa concepts, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 291 | Create an interference-hunting kit | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop an interference-hunting kit and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 292 | Build an automated bearing logger | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an automated bearing logger. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 293 | Run a mobile RDF exercise | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Plan and run a mobile rdf exercise with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 294 | Build a beacon hunt for youth | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a beacon hunt for youth. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 295 | Create a fox-hunt scoring app | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a fox-hunt scoring app and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 296 | Compare DF antenna designs | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Compare df antenna designs using the same conditions and repeatable measurements. Keep enough data to separate real improvement from normal propagation or measurement variation. | ||||||
| 297 | Characterize multipath errors | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use characterize multipath errors as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 298 | Build a portable spectrum-hunt kit | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a portable spectrum-hunt kit. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 299 | Create an RDF training course | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop an rdf training course and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 300 | Map recurring interference sources | | Beginner | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Use map recurring interference sources as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
20 projects
Propagation & Radio Science
Every contact is also a measurement of a radio path. Reporting networks and SDRs make it possible to turn those observations into serious propagation and ionospheric experiments.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 301 | Run a WSPR receiver | ★ | Beginner | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Plan and run a WSPR receiver with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 302 | Run a WSPR beacon | | Beginner | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Plan and run a WSPR beacon with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 303 | Analyze WSPR propagation | | Intermediate | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Collect enough data to analyze WSPR propagation rather than relying on impressions. Graph trends, compare conditions, and look for repeatable relationships. | ||||||
| 304 | Study propagation by time of day | | Beginner | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Use study propagation by time of day as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 305 | Study seasonal propagation | | Beginner | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Use study seasonal propagation as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 306 | Compare propagation with solar indices | | Beginner | $$–$$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Compare propagation with solar indices using the same conditions and repeatable measurements. Keep enough data to separate real improvement from normal propagation or measurement variation. | ||||||
| 307 | Monitor ionospheric disturbances | | Intermediate | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Continuously observe ionospheric disturbances, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 308 | Measure Doppler shifts | | Beginner | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Measure Doppler shifts with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 309 | Build a precision frequency station | | Intermediate | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a precision frequency station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 310 | Study meteor scatter | | Beginner | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Use study meteor scatter as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 311 | Study aircraft scatter | | Beginner | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Use study aircraft scatter as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 312 | Explore tropospheric propagation | | Beginner | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Learn the equipment, software, terminology, and operating practices behind tropospheric propagation. Start by receiving or observing where practical, then add transmitting once you understand the workflow. | ||||||
| 313 | Observe auroral propagation | | Beginner | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Use observe auroral propagation as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 314 | Compare MUF predictions with contacts | | Beginner | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Compare muf predictions with contacts using the same conditions and repeatable measurements. Keep enough data to separate real improvement from normal propagation or measurement variation. | ||||||
| 315 | Analyze RBN spots | | Intermediate | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Collect enough data to analyze RBN spots rather than relying on impressions. Graph trends, compare conditions, and look for repeatable relationships. | ||||||
| 316 | Analyze PSKReporter data | | Intermediate | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Collect enough data to analyze pskreporter data rather than relying on impressions. Graph trends, compare conditions, and look for repeatable relationships. | ||||||
| 317 | Participate in HamSCI campaigns | | Beginner | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Use participate in hamsci campaigns as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 318 | Record eclipse propagation effects | | Beginner | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Use record eclipse propagation effects as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 319 | Build a personal space-weather dashboard | | Intermediate | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a personal space-weather dashboard. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 320 | Create a long-term propagation database | | Intermediate | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Develop a long-term propagation database and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
20 projects
RF Electronics
If you want to understand what happens between the microphone and antenna connector, build the pieces yourself: oscillators, mixers, filters, amplifiers, receivers, and transmitters.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 321 | Build a crystal receiver | | Intermediate | $–$$ | RF, Electronics, DIY | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a crystal receiver. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 322 | Build a direct-conversion receiver | | Intermediate | $–$$ | RF, Electronics, DIY | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a direct-conversion receiver. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 323 | Build a regenerative receiver | | Intermediate | $–$$ | RF, Electronics, DIY | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a regenerative receiver. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 324 | Build a QRP CW transmitter | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a QRP CW transmitter. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 325 | Build a QRP transceiver | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a QRP transceiver. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 326 | Build an RF amplifier | | Intermediate | $$–$$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an RF amplifier. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 327 | Build a low-noise amplifier | | Intermediate | $$–$$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a low-noise amplifier. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 328 | Build a preselector | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a preselector. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 329 | Build a band-pass filter | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a band-pass filter. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 330 | Build a low-pass filter | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a low-pass filter. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 331 | Build a high-pass filter | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a high-pass filter. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 332 | Build an RF mixer experiment | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an RF mixer experiment. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 333 | Build a local oscillator | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a local oscillator. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 334 | Build a simple RF attenuator | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a simple RF attenuator. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 335 | Build a dummy load | ★ | Intermediate | $–$$ | RF, Electronics, DIY | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a dummy load. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 336 | Build an SWR bridge | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an SWR bridge. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 337 | Build a frequency counter | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a frequency counter. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 338 | Build a noise source | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a noise source. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 339 | Design an RF PCB | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Use design an RF PCB as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 340 | Characterize a homebrew RF circuit | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Use characterize a homebrew RF circuit as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
20 projects
Test Equipment & Measurement
Measurement changes radio from guessing to engineering. Learn to characterize antennas, feedlines, filters, receivers, transmitters, and homebrew circuits.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 341 | Learn the NanoVNA | ★ | Beginner | $–$$ | RF, Electronics, DIY | No license to build/receive; license for amateur TX |
| What you will do Use learn the nanovna as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 342 | Measure antenna impedance | | Beginner | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Measure antenna impedance with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 343 | Measure feedline loss | | Beginner | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Measure feedline loss with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 344 | Measure filter response | | Beginner | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Measure filter response with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 345 | Measure a balun | | Beginner | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Measure a balun with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 346 | Learn a spectrum analyzer | | Intermediate | $–$$ | RF, Electronics, DIY | No license to build/receive; license for amateur TX |
| What you will do Use learn a spectrum analyzer as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 347 | Characterize transmitter harmonics | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Use characterize transmitter harmonics as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 348 | Build a signal generator | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a signal generator. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 349 | Calibrate an S-meter | | Beginner | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Use calibrate an s-meter as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 350 | Measure receiver sensitivity | | Beginner | $–$$ | RF, Electronics, DIY | No license to build/receive; license for amateur TX |
| What you will do Measure receiver sensitivity with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 351 | Measure receiver selectivity | | Beginner | $–$$ | RF, Electronics, DIY | No license to build/receive; license for amateur TX |
| What you will do Measure receiver selectivity with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 352 | Measure transmitter power | | Beginner | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Measure transmitter power with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 353 | Build a step attenuator | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a step attenuator. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 354 | Create a test-jig library | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Develop a test-jig library and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 355 | Measure common-mode current | | Beginner | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Measure common-mode current with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 356 | Compare coax connectors | | Beginner | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Compare coax connectors using the same conditions and repeatable measurements. Keep enough data to separate real improvement from normal propagation or measurement variation. | ||||||
| 357 | Measure cable velocity factor | | Beginner | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Measure cable velocity factor with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 358 | Characterize an LNA | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Use characterize an LNA as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 359 | Build a return-loss bridge | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a return-loss bridge. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 360 | Create a repeatable RF bench workflow | | Intermediate | $–$$ | RF, Electronics, DIY | Amateur license for TX; privileges vary |
| What you will do Develop a repeatable RF bench workflow and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
20 projects
Repeaters & Infrastructure
Infrastructure projects combine RF engineering, power, networking, site reliability, remote monitoring, documentation, and community service.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 361 | Build a simplex repeater node | | Intermediate | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a simplex repeater node. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 362 | Build a cross-band repeater | | Intermediate | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a cross-band repeater. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 363 | Plan an amateur repeater | | Beginner | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use plan an amateur repeater as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 364 | Build a repeater controller | | Intermediate | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a repeater controller. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 365 | Add repeater telemetry | | Expert | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use add repeater telemetry as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 366 | Link repeaters over RF | | Intermediate | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use link repeaters over RF as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 367 | Link repeaters over IP | | Intermediate | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use link repeaters over ip as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 368 | Build a digital repeater lab | | Expert | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a digital repeater lab. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 369 | Monitor a repeater remotely | | Intermediate | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Continuously observe a repeater remotely, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 370 | Add solar backup to a site | | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use add solar backup to a site as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 371 | Build battery backup | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document battery backup. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 372 | Monitor site temperature | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Continuously observe site temperature, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 373 | Monitor site voltage and current | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Continuously observe site voltage and current, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 374 | Create a repeater status page | | Intermediate | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a repeater status page and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 375 | Build automatic failure alerts | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document automatic failure alerts. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 376 | Create remote receiver sites | | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Develop remote receiver sites and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 377 | Experiment with receiver voting | | Beginner | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Set up a controlled experiment with receiver voting, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 378 | Build a site network diagram | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a site network diagram. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 379 | Create maintenance documentation | | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Develop maintenance documentation and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 380 | Design a resilient hilltop site | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use design a resilient hilltop site as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
20 projects
Images, Television & Multimedia
Amateur radio can move pictures and video as well as voice and text. Image modes provide highly visual projects that are excellent for demonstrations and experimentation.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 381 | Send an SSTV image | ★ | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Send an SSTV image over an amateur-radio path, then verify reception and understand the protocol, bandwidth, error handling, and station configuration involved. | ||||||
| 382 | Receive SSTV images | ★ | Beginner | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Receive SSTV images, identify the signal correctly, decode or record it where applicable, and learn how antenna choice and local noise affect the result. | ||||||
| 383 | Build an SSTV event station | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an SSTV event station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 384 | Experiment with analog ATV | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with analog ATV, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 385 | Explore digital amateur television | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Learn the equipment, software, terminology, and operating practices behind digital amateur television. Start by receiving or observing where practical, then add transmitting once you understand the workflow. | ||||||
| 386 | Build a camera-to-radio interface | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a camera-to-radio interface. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 387 | Create an image beacon | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop an image beacon and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 388 | Archive received SSTV | ★ | Beginner | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Use archive received SSTV as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 389 | Build an SSTV gallery | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an SSTV gallery. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 390 | Decode satellite imagery | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use decode satellite imagery as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 391 | Experiment with narrowband image modes | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with narrowband image modes, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 392 | Create a field video link | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a field video link and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 393 | Build a mesh video service | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a mesh video service. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 394 | Experiment with digital image compression | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with digital image compression, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 395 | Create an RF slideshow experiment | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop an RF slideshow experiment and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 396 | Build a portable multimedia station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a portable multimedia station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 397 | Add captions and metadata to received images | | Beginner | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Use add captions and metadata to received images as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 398 | Create an automated SSTV receiver | ★ | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Develop an automated SSTV receiver and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 399 | Compare image modes under weak signals | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Compare image modes under weak signals using the same conditions and repeatable measurements. Keep enough data to separate real improvement from normal propagation or measurement variation. | ||||||
| 400 | Run a club image-transmission event | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Plan and run a club image-transmission event with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
20 projects
Weak Signal & Extreme Radio
The weak-signal world asks how far a signal can be pushed below ordinary expectations, across difficult paths, and sometimes off objects in the sky.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 401 | Try 6-meter weak signal | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try 6-meter weak signal as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 402 | Try 2-meter SSB | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try 2-meter SSB as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 403 | Try 70-centimeter SSB | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try 70-centimeter SSB as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 404 | Experiment with meteor scatter | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with meteor scatter, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 405 | Experiment with aircraft scatter | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with aircraft scatter, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 406 | Explore troposcatter | | Expert | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Learn the equipment, software, terminology, and operating practices behind troposcatter. Start by receiving or observing where practical, then add transmitting once you understand the workflow. | ||||||
| 407 | Work tropospheric ducting | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Turn work tropospheric ducting into a measurable operating goal. Track progress, learn which bands and propagation paths matter, and use the project to improve operating technique. | ||||||
| 408 | Try auroral propagation | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try auroral propagation as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 409 | Attempt EME reception | | Expert | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use attempt EME reception as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 410 | Attempt an EME contact | | Expert | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use attempt an EME contact as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 411 | Build a weak-signal antenna array | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a weak-signal antenna array. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 412 | Improve frequency stability | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use improve frequency stability as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 413 | Use WSJT weak-signal modes | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use use wsjt weak-signal modes as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 414 | Build a low-noise receive chain | | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a low-noise receive chain. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 415 | Experiment with microwave beacons | | Beginner | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with microwave beacons, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 416 | Try rain scatter on microwave bands | | Beginner | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Try rain scatter on microwave bands as a focused operating project. Learn the conventions, make several real contacts or observations, and note what changes in station setup or technique make the biggest difference. | ||||||
| 417 | Build a propagation beacon | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a propagation beacon. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 418 | Create automated weak-signal monitoring | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop automated weak-signal monitoring and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 419 | Compare preamps and feedline loss | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Compare preamps and feedline loss using the same conditions and repeatable measurements. Keep enough data to separate real improvement from normal propagation or measurement variation. | ||||||
| 420 | Plan an extreme-distance VHF/UHF station | | Expert | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use plan an extreme-distance VHF/UHF station as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
20 projects
Balloons, Telemetry & High-Altitude Projects
A balloon payload combines RF, GPS, embedded electronics, power, antennas, telemetry, prediction, mapping, and recovery into one project.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 421 | Track an amateur balloon | ★ | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Track an amateur balloon using appropriate RF, position, or orbital data. Compare predictions with observations and preserve the data for later analysis. | ||||||
| 422 | Build an APRS balloon payload | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an APRS balloon payload. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 423 | Build a WSPR balloon payload | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a WSPR balloon payload. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 424 | Design a lightweight GPS tracker | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use design a lightweight GPS tracker as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 425 | Create a telemetry sensor package | | Expert | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a telemetry sensor package and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 426 | Build a temperature/pressure payload | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a temperature/pressure payload. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 427 | Design a payload power system | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use design a payload power system as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 428 | Build a solar balloon tracker | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a solar balloon tracker. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 429 | Create a balloon chase dashboard | | Intermediate | $$–$$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Develop a balloon chase dashboard and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 430 | Predict balloon trajectories | | Beginner | $$–$$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Use predict balloon trajectories as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 431 | Build a ground tracking station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a ground tracking station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 432 | Archive flight telemetry | | Expert | $$$–$$$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Use archive flight telemetry as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 433 | Create automatic landing alerts | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop automatic landing alerts and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 434 | Experiment with low-power transmitters | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with low-power transmitters, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 435 | Design a lightweight antenna | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use design a lightweight antenna as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 436 | Build a payload enclosure | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a payload enclosure. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 437 | Run a club balloon launch | | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Plan and run a club balloon launch with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 438 | Create a recovery workflow | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a recovery workflow and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 439 | Analyze altitude versus radio range | | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Collect enough data to analyze altitude versus radio range rather than relying on impressions. Graph trends, compare conditions, and look for repeatable relationships. | ||||||
| 440 | Publish a live flight map | | Beginner | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Use publish a live flight map as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
20 projects
Weather & Environmental Monitoring
Radio is useful for getting measurements out of places where wires and conventional networks are inconvenient. Environmental telemetry is a natural meeting point for sensors and RF.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 441 | Build an amateur weather station | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an amateur weather station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 442 | Transmit weather via APRS | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use transmit weather via APRS as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 443 | Build a remote temperature sensor | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a remote temperature sensor. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 444 | Build a barometric pressure node | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a barometric pressure node. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 445 | Monitor lightning activity | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Continuously observe lightning activity, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 446 | Create a rainfall telemetry station | | Expert | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a rainfall telemetry station and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 447 | Monitor wind speed and direction | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Continuously observe wind speed and direction, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 448 | Build a solar-radiation sensor | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a solar-radiation sensor. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 449 | Monitor repeater-site conditions | | Intermediate | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Continuously observe repeater-site conditions, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 450 | Create a distributed sensor network | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a distributed sensor network and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 451 | Map local RF noise versus weather | | Beginner | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Use map local RF noise versus weather as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 452 | Correlate propagation with weather | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use correlate propagation with weather as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 453 | Build a flood-level telemetry node | | Expert | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a flood-level telemetry node. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 454 | Create a solar-powered field sensor | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a solar-powered field sensor and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 455 | Archive long-term environmental data | | Beginner | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Use archive long-term environmental data as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 456 | Build a weather dashboard | | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a weather dashboard. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 457 | Send sensor data over packet | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Send sensor data over packet over an amateur-radio path, then verify reception and understand the protocol, bandwidth, error handling, and station configuration involved. | ||||||
| 458 | Send sensor data over mesh | | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Send sensor data over mesh over an amateur-radio path, then verify reception and understand the protocol, bandwidth, error handling, and station configuration involved. | ||||||
| 459 | Create threshold alerts | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop threshold alerts and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 460 | Build an off-grid environmental station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an off-grid environmental station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
20 projects
Radio Astronomy & Natural Radio
Not every radio project involves another operator. Receivers can observe the Sun, Jupiter, the galaxy, lightning, and natural radio phenomena.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 461 | Build a simple radio telescope | | Intermediate | $$$–$$$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a simple radio telescope. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 462 | Explore Radio JOVE | ★ | Beginner | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Learn the equipment, software, terminology, and operating practices behind radio jove. Start by receiving or observing where practical, then add transmitting once you understand the workflow. | ||||||
| 463 | Listen for Jupiter radio bursts | | Beginner | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Use listen for jupiter radio bursts as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 464 | Monitor solar radio activity | | Intermediate | $$–$$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Continuously observe solar radio activity, record the measurements, and turn them into trends or alerts. Long-term data often reveals station and propagation behavior that a quick check misses. | ||||||
| 465 | Build a VLF natural-radio receiver | | Intermediate | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a vlf natural-radio receiver. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 466 | Listen for sferics and whistlers | | Beginner | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Use listen for sferics and whistlers as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 467 | Track galactic radio noise | | Beginner | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Track galactic radio noise using appropriate RF, position, or orbital data. Compare predictions with observations and preserve the data for later analysis. | ||||||
| 468 | Observe the Milky Way in radio | | Beginner | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Use observe the milky way in radio as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 469 | Build a hydrogen-line experiment | | Expert | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a hydrogen-line experiment. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 470 | Use an SDR for radio astronomy | | Beginner | $$–$$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Use use an SDR for radio astronomy as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 471 | Build a directional receiving antenna | | Intermediate | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a directional receiving antenna. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 472 | Create long-duration sky recordings | | Intermediate | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Develop long-duration sky recordings and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 473 | Automate sky scans | | Intermediate | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Use automate sky scans as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 474 | Calibrate a radio telescope | | Beginner | $$$–$$$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Use calibrate a radio telescope as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 475 | Map signal strength versus pointing angle | | Beginner | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Use map signal strength versus pointing angle as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 476 | Build a Raspberry Pi astronomy receiver | | Intermediate | $$–$$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a raspberry pi astronomy receiver. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 477 | Compare local RFI at astronomy sites | | Beginner | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Compare local rfi at astronomy sites using the same conditions and repeatable measurements. Keep enough data to separate real improvement from normal propagation or measurement variation. | ||||||
| 478 | Create a remote quiet-site receiver | | Intermediate | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Develop a remote quiet-site receiver and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 479 | Participate in citizen-science observations | | Beginner | $–$$ | Science, SDR, Data | Amateur license for TX; privileges vary |
| What you will do Use participate in citizen-science observations as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 480 | Build an astronomy data archive | | Intermediate | $–$$ | Science, SDR, Data | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document an astronomy data archive. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
20 projects
Emergency & Public-Service Communications
The valuable part of emergency communications is not owning a go-box. It is designing, practicing, documenting, and improving systems that work under constrained conditions.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 481 | Build a basic go-kit | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a basic go-kit. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 482 | Build a portable VHF/UHF station | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a portable VHF/UHF station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 483 | Build an HF emergency station | | Expert | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an HF emergency station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 484 | Create a portable power kit | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a portable power kit and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 485 | Build a field charging station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a field charging station. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 486 | Practice formal message handling | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Practice formal message handling under realistic constraints. Record what failed, what took too long, and what should be changed before the capability is actually needed. | ||||||
| 487 | Run a communications exercise | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Plan and run a communications exercise with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 488 | Build an incident communications plan | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an incident communications plan. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 489 | Set up a field net-control station | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Configure a field net-control station from scratch, verify that each component works, and document the settings so the station can be rebuilt or troubleshot later. | ||||||
| 490 | Build a portable mast kit | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a portable mast kit. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 491 | Create a communications trailer concept | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a communications trailer concept and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 492 | Practice operating without internet | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Practice operating without internet under realistic constraints. Record what failed, what took too long, and what should be changed before the capability is actually needed. | ||||||
| 493 | Practice operating without grid power | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Practice operating without grid power under realistic constraints. Record what failed, what took too long, and what should be changed before the capability is actually needed. | ||||||
| 494 | Build redundant communications paths | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document redundant communications paths. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 495 | Create a deployment checklist | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a deployment checklist and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 496 | Build a resource-tracking dashboard | | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a resource-tracking dashboard. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 497 | Practice shelter communications | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Practice shelter communications under realistic constraints. Record what failed, what took too long, and what should be changed before the capability is actually needed. | ||||||
| 498 | Integrate Winlink into an exercise | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use integrate winlink into an exercise as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 499 | Integrate mesh networking into an exercise | | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use integrate mesh networking into an exercise as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 500 | Run an after-action technical review | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Plan and run an after-action technical review with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
20 projects
Maker, Fabrication & Mechanical Projects
A radio station needs more than electronics. Enclosures, mounts, masts, panels, cases, brackets, cooling, and field hardware reward practical fabrication skills.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 501 | 3D-print radio accessories | ★ | Beginner | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Use 3d-print radio accessories as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 502 | Design a custom radio enclosure | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Use design a custom radio enclosure as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 503 | Build a portable rack case | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a portable rack case. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 504 | Fabricate an antenna mount | | Beginner | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Use fabricate an antenna mount as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 505 | Build a mast tripod | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a mast tripod. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 506 | Build a pneumatic antenna launcher | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a pneumatic antenna launcher. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 507 | Create custom cable panels | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Develop custom cable panels and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 508 | Design a PCB enclosure | | Intermediate | $–$$ | DIY, Electronics, Fabrication | No license to build/receive; license for amateur TX |
| What you will do Use design a PCB enclosure as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 509 | Build a radio desk console | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a radio desk console. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 510 | Make custom knobs and adapters | | Beginner | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Make custom knobs and adapters and document the station, conditions, antenna, power, and technique that made it possible. Then change one variable and try to improve the result. | ||||||
| 511 | Build a battery box | | Intermediate | $$–$$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a battery box. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 512 | Create a field power distribution panel | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Develop a field power distribution panel and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 513 | Build a weatherproof node enclosure | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a weatherproof node enclosure. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 514 | Design a heat-management system | | Expert | $$$–$$$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Use design a heat-management system as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 515 | Build a cable-management system | | Expert | $$$–$$$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a cable-management system. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 516 | Create quick-deploy antenna hardware | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Develop quick-deploy antenna hardware and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 517 | Build a portable equipment cart | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a portable equipment cart. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 518 | CNC an antenna bracket | | Beginner | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Use cnc an antenna bracket as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 519 | Laser-cut a station panel | | Beginner | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Use laser-cut a station panel as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 520 | Build a custom microphone interface | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a custom microphone interface. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
20 projects
Vintage Radio & Restoration
Old equipment is a hands-on history lesson in electronics. Restoration teaches troubleshooting, safety, analog circuitry, alignment, documentation, and patience.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 521 | Restore a vintage receiver | ★ | Intermediate | $–$$ | DIY, Electronics, Fabrication | No license to build/receive; license for amateur TX |
| What you will do Restore a vintage receiver safely and methodically. Document the original condition, troubleshoot by stage, replace only what is necessary, and verify performance after the work. | ||||||
| 522 | Restore a tube transmitter | | Intermediate | $–$$ | DIY, Electronics, Fabrication | No license to build/receive; license for amateur TX |
| What you will do Restore a tube transmitter safely and methodically. Document the original condition, troubleshoot by stage, replace only what is necessary, and verify performance after the work. | ||||||
| 523 | Recap an older radio | | Beginner | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Use recap an older radio as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 524 | Align a vintage receiver | ★ | Beginner | $–$$ | DIY, Electronics, Fabrication | No license to build/receive; license for amateur TX |
| What you will do Use align a vintage receiver as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 525 | Build a dim-bulb tester | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a dim-bulb tester. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 526 | Create an isolation-transformer bench | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Develop an isolation-transformer bench and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 527 | Restore an analog meter | | Intermediate | $–$$ | DIY, Electronics, Fabrication | No license to build/receive; license for amateur TX |
| What you will do Restore an analog meter safely and methodically. Document the original condition, troubleshoot by stage, replace only what is necessary, and verify performance after the work. | ||||||
| 528 | Rebuild an old power supply | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Use rebuild an old power supply as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 529 | Repair a classic microphone | | Beginner | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Use repair a classic microphone as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 530 | Recreate a period-correct station | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Use recreate a period-correct station as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 531 | Operate vintage AM | | Beginner | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Operate vintage AM and learn the practical differences in equipment, propagation, etiquette, and technique compared with your normal operating style. | ||||||
| 532 | Operate vintage CW | | Beginner | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Operate vintage CW and learn the practical differences in equipment, propagation, etiquette, and technique compared with your normal operating style. | ||||||
| 533 | Document a radio’s history | | Beginner | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Use document a radio’s history as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 534 | Digitize old manuals | | Beginner | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Use digitize old manuals as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 535 | Create a restoration photo log | | Intermediate | $–$$ | DIY, Electronics, Fabrication | No license to build/receive; license for amateur TX |
| What you will do Develop a restoration photo log and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 536 | Build replacement unobtainable parts | | Expert | $$$–$$$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document replacement unobtainable parts. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 537 | Measure vintage receiver performance | ★ | Beginner | $–$$ | DIY, Electronics, Fabrication | No license to build/receive; license for amateur TX |
| What you will do Measure vintage receiver performance with appropriate test equipment, establish a repeatable procedure, and compare the result with theory, specifications, or a known reference. | ||||||
| 538 | Compare vintage and modern receivers | | Beginner | $–$$ | DIY, Electronics, Fabrication | No license to build/receive; license for amateur TX |
| What you will do Compare vintage and modern receivers using the same conditions and repeatable measurements. Keep enough data to separate real improvement from normal propagation or measurement variation. | ||||||
| 539 | Restore an old key or bug | | Intermediate | $–$$ | DIY, Electronics, Fabrication | No license to build/receive; license for amateur TX |
| What you will do Restore an old key or bug safely and methodically. Document the original condition, troubleshoot by stage, replace only what is necessary, and verify performance after the work. | ||||||
| 540 | Create a club vintage-radio display | | Intermediate | $–$$ | DIY, Electronics, Fabrication | Amateur license for TX; privileges vary |
| What you will do Develop a club vintage-radio display and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
20 projects
Education & Outreach
A good amateur-radio project can become a demonstration, workshop, class, or STEM activity that lets someone else discover the hobby by doing.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 541 | Teach a licensing class | ★ | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Teach a licensing class with demonstrations and hands-on exercises rather than lecture alone. Build reusable material that another club member can teach later. | ||||||
| 542 | Build a license-exam study group | | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a license-exam study group. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 543 | Run a youth fox hunt | ★ | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Plan and run a youth fox hunt with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 544 | Demonstrate satellite communication | | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use demonstrate satellite communication as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 545 | Demonstrate FT8 visually | ★ | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use demonstrate ft8 visually as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 546 | Build an antenna classroom experiment | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an antenna classroom experiment. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 547 | Create a Morse-code activity | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a morse-code activity and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 548 | Run a soldering workshop | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Plan and run a soldering workshop with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 549 | Build crystal radios with students | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document crystal radios with students. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 550 | Create an SDR spectrum demo | | Intermediate | $$–$$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Develop an SDR spectrum demo and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 551 | Show APRS tracking on a map | | Beginner | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Use show APRS tracking on a map as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 552 | Run a balloon STEM project | | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Plan and run a balloon stem project with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 553 | Create a school radio station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a school radio station and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 554 | Host a radio open house | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Host a radio open house and make it reachable through the intended amateur-radio path. Monitor reliability, document dependencies, and test how it behaves when ordinary internet access is removed. | ||||||
| 555 | Run a POTA introduction day | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Plan and run a POTA introduction day with clear goals, roles, logging, and an after-action review. Treat the activity as both an operating event and a chance to improve the system. | ||||||
| 556 | Create a ‘radio without internet’ demo | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a ‘radio without internet’ demo and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 557 | Teach basic RF safety | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Teach basic RF safety with demonstrations and hands-on exercises rather than lecture alone. Build reusable material that another club member can teach later. | ||||||
| 558 | Create a NanoVNA workshop | ★ | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a nanovna workshop and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 559 | Build an electronics mentoring program | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an electronics mentoring program. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 560 | Create a newcomer project night | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a newcomer project night and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
20 projects
Club & Community Infrastructure
Clubs can build shared systems that no single operator needs to own: receivers, networks, dashboards, repeaters, project repositories, and community tools.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 561 | Build a club website | ★ | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a club website. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 562 | Create a club event calendar | | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Develop a club event calendar and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 563 | Build a club logging system | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a club logging system. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 564 | Create a shared remote receiver | | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Develop a shared remote receiver and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 565 | Build a club SDR | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a club SDR. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 566 | Create a club APRS iGate | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a club APRS igate and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 567 | Build a club mesh network | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a club mesh network. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 568 | Create a repeater dashboard | | Intermediate | $$$–$$$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Develop a repeater dashboard and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 569 | Build a membership portal | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a membership portal. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 570 | Create a net check-in system | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a net check-in system and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 571 | Build an equipment checkout system | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an equipment checkout system. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 572 | Create a club knowledge base | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a club knowledge base and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 573 | Build an online exam workflow | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an online exam workflow. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 574 | Create a volunteer scheduling system | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a volunteer scheduling system and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 575 | Build a club propagation display | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a club propagation display. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 576 | Create a public station status board | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a public station status board and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 577 | Build a shared project repository | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a shared project repository. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 578 | Create a club telemetry network | | Expert | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a club telemetry network and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 579 | Build a public map of club infrastructure | | Intermediate | $–$$ | Operating, RF, Technical | No license to build/receive; license for amateur TX |
| What you will do Design, assemble, test, and document a public map of club infrastructure. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 580 | Create a newcomer onboarding system | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a newcomer onboarding system and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
20 projects
Experimental & Because We Can
Part of amateur radio’s identity is experimentation. This section is for projects where the point is not merely to use an existing mode, but to invent, combine, test, and learn.
| # | Project | Markers | Difficulty | Cost | Skills | License |
|---|---|---|---|---|---|---|
| 581 | Design your own digital protocol | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use design your own digital protocol as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 582 | Write your own modem | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop your own modem from a small proof of concept into a usable tool. Work with real amateur-radio data or control interfaces, handle edge cases, and publish the result if others could benefit. | ||||||
| 583 | Invent a telemetry format | | Expert | $$$–$$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use invent a telemetry format as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 584 | Build an RF-linked robot | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an RF-linked robot. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 585 | Create a radio-controlled rover | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a radio-controlled rover and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 586 | Build a distributed RF sensor network | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a distributed RF sensor network. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 587 | Create an autonomous radio station | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop an autonomous radio station and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 588 | Build a store-and-forward RF network | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a store-and-forward RF network. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 589 | Experiment with delay-tolerant networking | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with delay-tolerant networking, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 590 | Create an MQTT-over-radio bridge | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop an MQTT-over-radio bridge and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 591 | Build a custom RF chat system | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a custom RF chat system. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 592 | Design a low-bandwidth file-transfer protocol | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use design a low-bandwidth file-transfer protocol as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 593 | Build an RF time-synchronization experiment | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an RF time-synchronization experiment. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 594 | Create a distributed propagation sensor | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a distributed propagation sensor and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 595 | Build an autonomous beacon network | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document an autonomous beacon network. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 596 | Experiment with software-defined modulation | | Beginner | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Set up a controlled experiment with software-defined modulation, change one variable at a time, and record what actually improves or degrades performance. | ||||||
| 597 | Create a custom mesh-routing experiment | | Intermediate | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Develop a custom mesh-routing experiment and make it useful in a real station or field scenario. Define what data or control it needs, test failure cases, and document how another operator could reproduce it. | ||||||
| 598 | Build a radio data visualization wall | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document a radio data visualization wall. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
| 599 | Combine AI signal classification with SDR | | Beginner | $$–$$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Use combine ai signal classification with SDR as a hands-on project. Define a goal, build or configure what is needed, measure the result, and document what you learned so the experiment can be repeated. | ||||||
| 600 | Build something that does not have a category yet | | Intermediate | $–$$ | Operating, RF, Technical | Amateur license for TX; privileges vary |
| What you will do Design, assemble, test, and document something that does not have a category yet. Use the project to learn the underlying RF, electronics, mechanical, or software principles instead of treating the finished device as a black box. | ||||||
How to Use This Catalog Without Reading All 600 Projects
This is intentionally not a Top 10 list. Use the catalog as a map. Pick a section that matches something you already enjoy, look for ⭐ Great First Project, or look for the RX radio-wave marker if you are not licensed yet or want receive-only, bench, software, simulation, analysis, restoration, or other non-transmitting projects. Complete one project, then use its section's Start Here path to decide what should come next.
Pick a Path Instead of a Project
With hundreds of choices, sometimes the easiest way to start is to follow a path. These are not rigid curricula. They are sequences that let one project naturally teach the skills needed for the next.
I just got my license
Local repeater -> simplex -> build a 2 m antenna -> APRS -> portable operating -> POTA -> HF -> digital modes -> satellites -> build something of your own.
I am a computer nerd
RTL-SDR -> CAT control -> digital modes -> APRS-IS -> Raspberry Pi radio appliance -> MQTT -> GNU Radio -> AREDN -> propagation analytics -> custom radio software.
I like electronics
Dipole -> dummy load -> SWR bridge -> NanoVNA -> filter -> balun -> oscillator -> receiver -> QRP transmitter -> complete transceiver.
I like Arduino, ESP32, and Raspberry Pi
Station display -> sensor node -> telemetry -> antenna switch -> rotor controller -> APRS tracker -> remote station -> autonomous monitoring site.
I want to do science
WSPR receiver -> propagation database -> SDR -> RBN/PSKReporter analysis -> precision frequency measurement -> eclipse or space-weather observations -> radio astronomy -> citizen-science contribution.
I want something ridiculous
Meteor scatter -> automated satellite ground station -> distributed RDF -> radio astronomy -> custom digital modem -> autonomous RF network -> EME.
Pick by Interest
| If you enjoy… | Start exploring… |
|---|---|
| Computers | SDR, digital modes, coding, station automation |
| Programming | CAT, APIs, logging, DSP, propagation analytics, MQTT |
| Electronics | RF circuits, test equipment, Arduino, homebrew radios |
| Building things | Antennas, portable stations, masts, enclosures, repeaters |
| The outdoors | POTA, SOTA, fox hunting, satellites, balloons |
| Science | WSPR, HamSCI-style projects, propagation, radio astronomy |
| Networking | AREDN, packet, APRS, VoIP, mesh services |
| Space | Satellites, telemetry, tracking, radio astronomy |
| Emergency preparedness | Winlink, portable power, mesh, go-kits, exercises |
| Competition | Contesting, DXing, awards, roving |
| Teaching | STEM projects, fox hunts, satellites, demonstrations |
| Data | RBN, PSKReporter, WSPR, telemetry, propagation analytics |
| Making weird stuff | Experimental radio, custom protocols, automation |
| Talking to people | Voice, repeaters, nets, HF, satellites |
| Not talking to people | A surprisingly large percentage of the other projects in this guide. |
A Few Important Starting Points
Several established amateur-radio organizations maintain deep technical material that can take these ideas much further:
- ARRL covers operating modes and systems including voice, CW,
digital data, image modes, weak-signal work, remote control, satellites, QRP, EME, and technical specialties.
- AMSAT maintains getting-started and operating material for amateur
satellites, including FM, SSB/CW, digital satellites, telemetry, antennas, tracking, and station design.
- HamSCI connects amateur-radio observations with citizen science
and professional research. Its projects use data from systems such as WSPRNet, PSKReporter, and the Reverse Beacon Network to study the ionosphere and related phenomena.
- AREDN applies amateur radio to resilient IP networking and can
support services such as chat, VoIP, mapping, video, monitoring, and other network applications over RF links.
- Winlink provides radio email and supports messaging over radio
pathways when normal internet connectivity is unavailable.
- APRS is much more than vehicle tracking. It supports real-time
packet-based position, messaging, telemetry, weather, and tactical information.
Master Resource Library
Online documentation is usually best for software, protocols, active satellites, and services that change frequently. Books are often better for coherent treatments of RF theory, antennas, electronics, measurement, and station engineering. Use both.
Core Bookshelf
- The ARRL Handbook for Radio Communications - Broad technical reference for electronics, RF systems, receivers, transmitters, DSP, construction, test equipment, and station engineering.
- The ARRL Antenna Book - Deep antenna reference covering theory, propagation, feed lines, construction, measurement, portable systems, VHF/UHF, and specialty antennas.
- The ARRL Operating Manual - Broad operating reference covering the practical side of getting on the air.
- Grounding and Bonding for the Radio Amateur - Focused reference for AC safety, lightning protection, bonding, and RF-current management.
- Experimental Methods in RF Design - A classic build-and-measure reference. Some software and references are dated, so pair it with current documentation.
- Getting Started with Amateur Satellites from AMSAT - Focused satellite guide covering tracking, antennas, radios, FM and linear satellites, digital data, operating technique, and station upgrades.
- Get on the Air with HF Digital - Practical entry point for operators moving into computer-assisted HF modes.
Free and Online Core Library
- ARRL Tech Portal - https://www.arrl.org/tech-portal
- AMSAT - https://www.amsat.org/
- HamSCI - https://hamsci.org/
- AREDN Documentation - https://www.arednmesh.org/documentation
- Winlink Book of Knowledge - https://winlink.org/content/winlink_book_knowledge
- Dire Wolf Documentation - https://github.com/wb2osz/direwolf-doc
- GNU Radio Documentation - https://wiki.gnuradio.org/
- WSJT-X User Guide - https://wsjt.sourceforge.io/wsjtx-main_en.html
- FCC Part 97 / Amateur Radio Service - https://www.ecfr.gov/current/title-47/chapter-I/subchapter-D/part-97
Resource rule
Use primary documentation first when a project depends on a protocol, software package, radio command set, regulation, or safety limit. Use books for deeper theory that does not become obsolete every software release. Community guides and videos are excellent for seeing how other people solved practical problems, but critical technical and regulatory details should be checked against primary material.
The Point
Amateur radio is not one activity. It is a technical sandbox with a callsign attached.
You can spend an evening talking on a repeater. You can spend a weekend activating a park. You can spend six months designing an RF board. You can write software that watches propagation across the planet, build an antenna from hardware-store parts, receive telemetry from a spacecraft, launch your own telemetry package under a balloon, create an off-grid IP network, restore a radio older than you are, or try to bounce a signal off the Moon.
You can spend $25. You can spend $25,000. You can operate from an apartment, a mountaintop, a vehicle, a school, a club station, a backpack, or a rack full of servers and radios.
And you do not have to enjoy every part of it.
That may be the most important point of all. Amateur radio is broad enough that two licensed operators can spend decades in the hobby and have almost no overlap in what they actually do.
So if amateur radio has started to feel repetitive, do not assume you have reached the end of the hobby.
You may have simply reached the edge of one corner of it. Pick another project.
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Editorial / Source Notes
This catalog is written as an idea guide, not as a substitute for current regulations, equipment manuals, RF-safety guidance, or band plans. Costs and difficulty ratings are intentionally approximate. Before transmitting, verify current FCC Part 97 requirements, your license privileges, applicable band plans, power limits, identification requirements, automatic-control rules, and local restrictions.
Primary organizations consulted for the scope and terminology of this guide include ARRL, AMSAT, HamSCI, AREDN, Winlink/ARSFI, and APRS documentation.