Category Archives: radio hacks

Homebrew Loop Antenna Brings the Shortwave World to You

Radio may be dead in terms of delivering entertainment, but it’s times like these when the original social network comes into its own. Being able to tune in stations from across the planet to get fresh perspectives on a global event can even be a life saver. You’ll need a …read more

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Posted in balun, Coax, coaxial, loop, noise, oroid, radio, radio hacks, sdr, shortwave, unun | Leave a comment

Software-Defined Radio Made Easy

Just a few decades ago, getting into hobby radio meant lots of specialty hardware, and making changes to your setup to work on various frequencies wasn’t particularly easy. Since software-defined radio (SDR) came onto the scene in an accessible way for most of us, this barrier to entry was reduced …read more

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Posted in custom, debian, dragonos, linux, radio, radio hacks, sdr, software, software-defined radio | Leave a comment

The Libre Space Foundation Reviews Software Defined Radios

If you want to go to the next level with software defined radio (SDR), there are a lot of choices. The RTL-SDR dongles are fine, but if you get serious you’ll probably want something else. How do you choose? Well, your friends at the European Space Agency Libre Space Foundation …read more

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Posted in ESA, radio hacks, sdr, software-defined radio | Leave a comment

Shoot the Moon with this Homebrew Hardline RF Divider

You can say one thing for [Derek]’s amateur radio ambitions — he certainly jumps in with both feet. While most hams never even attempt to “shoot the Moon”, he’s building out an Earth-Moon-Earth, or EME, setup which requires this little beauty: a homebrew quarter-wave hardline RF divider, and he’s sharing …read more

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Posted in amateur radio, Coax, dielectric, Earth-Moon-Earth, EME, ham, hardline, impedance, moon bounce, radio hacks, transformer | Leave a comment

Two Perspectives on James Clerk Maxwell and His Equations

We are unabashed fans of [The History Guy’s] YouTube channel, although his history videos aren’t always about technology, and even when they are, they don’t always dig into the depths that we’d like to see. That’s understandable since the channel is a general interest channel. However, for this piece on …read more

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Posted in history, james clerk maxwell, maxwell's equations, radio hacks, science | Leave a comment

Quantum Sensor Receives from 0 Hz to 1000 GHz

Although it isn’t that uncommon to have broadband radio coverage in a single device, going from 0 Hz to 1000 GHz with one antenna and receiver is a bit much. But not for the US Army it seems, because they’ve developed a quantum sensor that can cover that range.

The …read more

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Posted in army, quantum radio, quantum sensor, radio hacks, Rydberg Atoms, science | Leave a comment

High Power LoRa and Tropospheric Reflection Experiments

We’re used to LoRa as a free-to-use digital radio protocol allowing not-very-high data rate communications over distances of a few miles. It’s made all kinds of distributed sensor systems a breeze, and some experimenters have made an art of achieving communication over hundreds of miles. But what would happen if …read more

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Posted in 435MHz, amateur radio, LoRa, radio hacks, tropsphere | 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

Get Your Weather Images Straight from the Satellite

[Josh] has a series called Ham Radio Crash Course and a recent installment covers how you can grab satellite images directly from weather satellites. This used to be more of a production than it is now thanks to software defined radio (SDR). Josh also has another project using a 3D …read more

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Posted in noaa, radio hacks, satellite, space, weather satellite, WXtoIMG | Leave a comment

Raising the Titanic’s Radio Room

For some reason, of all the ships that have sailed the oceans, it’s the unlucky ones that capture our imagination. Few ships have been as unlucky as the RMS Titanic, sinking as she did on the night of April 15, 1912 after raking across an iceberg on her maiden …read more

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Posted in Featured, history, Interest, Marconi, Original Art, radio, radio hacks, rov, salvage, spark gap, titanic | Leave a comment