Category Archives: ham radio

Raspberry Pi Takes Control of Ham Radio

Today’s ham radio gear often has a facility for remote control, but they most often talk to a computer, not the operator. Hambone, on the other hand, acts like a ham radio robot, decoding TouchTone digits and taking action — for example, keying the radio and reading off the weather …read more

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Posted in fast fourrier transform, fft, ham radio, numpy, radio hacks, touchtone, yaesu | Leave a comment

Tackling Trunked Radio with Software

For those starting to wade into radio as a hobby, one of the first real technical challenges is understanding trunked radio systems. On the surface, it seems straightforward: A control channel allows users to share a section of bandwidth rather than take up one complete channel, allowing for greater usage …read more

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Posted in amateur radio, dongle, ham radio, radio, radio hacks, RTL-SDR, software, software-defined radio, trunked | Leave a comment

Hackaday Links: March 22, 2020

Within the span of just two months, our world of unimaginable plenty and ready access to goods manufactured across the globe has been transformed into one where the bare essentials of life are hard to find at any price. The people on the frontline of the battle against COVID-19 are …read more

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Posted in amateur radio, camera, cons, Covid-19, face mask, Hackaday Columns, Hackaday links, ham radio, lens, license, mask, n95, O-ring, OSHW Summit 2020, PPE, VE testing, waterproof | Leave a comment

Link Coupling Antenna Tuner Wordless Workshop

Remember “Wordless Workshop” in Popular Science? [Roy Doty] illustrated a household problem and the solution for it cobbled up in the main character’s garage workshop. We wonder what [Roy] would have done with YouTube? Maybe something like the video from [VE2TAE] and [VE2AEV] showing their link coupling antenna tuning build. …read more

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Posted in air variable capacitor, antenna tuner, capacitor, coil, ham radio, inductor, link coupling tuner, radio hacks | Leave a comment

Stout Homebrew Radio Pumps Out 200W of AM Goodness

In this day and age, with cheap online shopping, software defined radio and bargain-basement Baofengs from China, the upstart radio ham is spoilt for choice. Of course, there’s nothing quite like the charm of keying up your own homebrewed rig, cooked up in the garage from scratch. [Paul], aka [VK3HN], …read more

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Posted in am, am radio, amateur radio, ham radio, radio, radio hacks | Leave a comment

Intercontinental Radio Communications With The Help Of Fly Fishing Reels

All of us have experience in trying to explain to a confused store assistant exactly what type of kitchen implement you’re looking for, and why it is a perfectly suitable part for your autonomous flying lawn mower. Or in the case of [MM0OPX] trying to find fly fishing reels that …read more

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Posted in antenna, antenna build, ham radio, radio hacks, wireless communications | Leave a comment

Raspberry Pi Ham Radio Remote Reviewed

One problem with ham radio these days is that most hams live where you can’t put a big old antenna up due to city laws and homeowner covenants. If you’re just working local stations on VHF or UHF, that might not be a big problem. But for HF usage, using …read more

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Posted in ham radio, mfj, morse code, radio hacks, Raspberry Pi, Remote monitoring | Leave a comment

Ham Radio Gets Embedded RTL-SDR

We usually think of the RTL-SDR as a low-cost alternative to a “real” radio, but this incredible project spearheaded by [Rodrigo Freire] shows that the two classes of devices don’t have to be mutually exclusive. After nearly 6 months of work, he’s developed and documented a method to integrate a …read more

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Posted in FT-991, ham radio, radio hacks, RTL-SDR, tap, USB hub, yaesu | Leave a comment

CB Radio + Arduino = 6 Meter Ham Band

Somehow [hvde] wound up with a CB radio that does AM and SSB on the 11 meter band. The problem was that the radio isn’t legal where he lives. So he decided to change the radio over to work on the 6 meter band, instead.

We were a little surprised …read more

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Posted in am, arduino, Arduino Hacks, cb radio, dds, ham radio, ssb, synthesis, wireless hacks | Leave a comment

An SDR Transceiver The Old-School Way

Software-defined radios or SDRs have provided a step-change in the way we use radio. From your FM broadcast receiver which very likely now has single-application SDR technology embedded in a chip through to the all-singing-all-dancing general purpose SDR you’d find on an experimenter’s bench, control over signal processing has moved …read more

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Posted in amateur radio, ham radio, quadrature, radio, radio hacks, sdr, transceiver | Leave a comment