Category Archives: gnu radio

Pulling Data From News Feed Telemetry

We are used to seeing shots from TV news helicopters every day, they are part of the backdrop to life in the 21st century. But so often we hear them overlaid with studio commentary, so it’s interesting to hear that their raw audio contains telemetry. It caught the attention of …read more

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Posted in audio, digital audio hacks, gnu radio, telemetry | Leave a comment

TEMPEST Comes To GNU Radio

As we use our computers, to watch YouTube videos of trucks hitting bridges, to have a Zoom call with our mothers, or even for some of us to write Hackaday articles, we’re unknowingly sharing a lot of what we are doing with the world. The RF emissions from our monitors, …read more

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Posted in gnu radio, radio hacks, sdr, tempest | Leave a comment

Software Defined Everything with Mike Ossmann and Kate Temkin

Software defined radio has become a staple of the RF tinkerer, but it’s likely that very few of us have ever taken their software defined toolchain outside the bounds of radio. It’s an area explored by Mike Ossmann and Kate Temkin in their newly published Supercon talk as they use …read more

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Posted in 2019 Hackaday Superconference, cons, gnu radio, gnu radio companion, Hackaday SuperConference, Kate Temkin, michael ossmann, radio hacks, sdr, software hacks | Leave a comment

Your Table Is Ready, Courtesy Of HackRF

Have you ever found yourself in a crowded restaurant on a Saturday night, holding onto one of those little gadgets that blinks and vibrates when it’s your turn to be seated? Next time, bust out the HackRF and follow along with [Tony Tiger] as he shows how it can be …read more

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Posted in gnu radio, HackRF, inspectrum, pager, radio hacks, reverse engineering, Universal Radio Hacker, wireless hacks | Leave a comment

Short Length of Wire Turns STM32 Microcontroller into Good-enough Wireless UART Blaster

Hackaday regular [befinitiv] wrote into the tip line to let us know about a hack you might enjoy, wireless UART output from a bare STM32 microcontroller. Desiring the full printf debugging experience, but constrained both by available space and expense, [befinitiv] was inspired to improvise by a similar hack that used the STM32 to send Morse code over standard FM frequencies.

In this case, [befinitiv]’s solution is both more useful and slightly more legal, as the software uses the 27 MHz ISM band to blast out ASK modulated serial data through a simple wire antenna attached to one of the …read more

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Posted in arm, gnu radio, Microcontrollers, radio, radio hacks, stm32, wireless | Leave a comment