SDR projects have been developing
https://github.com/jopohl/urh universal radio hacker https://redhawksdr.org/ open source SDR multinode IDE tuned for redhat systems, has code generation https://www.rtl-sdr.com/ -- I finally got my nyansat gymbal running! I'm using a raspberry pi instead of an esp32 for easier turnaround. The parts of the framework I ported are at https://github.com/xloem/antenny in the nyansat/station subfolder. (import antenny; api = antenny.esp32_antenna_api_factory()). motor and imu should be connected to pi i2c pins, and it'll look for adafruit's circuitpython libraries. I'm pretty sure you could use ICA and adaptive subsampling to make a cheap realtime image of your local radio environment with one of these. Could also a dish antenna on the gymbal to not need ICA. This would help enough in reusably describing shielded rooms that I'm still trying to move forward on it, after all these years. It doesn't look to me like the nyansat is actually _using_ its imu for anything. I asked in the chat where the imu is used to calibrate the motors and no reply yet. They might be waiting for someone to flush their stubs out. I would have organised the code differently to provide for sub-duty-cycle-precision expansion options and more backend platforms.
Dropped this which I also bumped into: https://www.crowdsupply.com/krakenrf/krakensdr it's a synchronised multi-rtl-sdr for radar etc.
Encrypted random radio comms nets are possibly to become highly important for freedom in the future. Learn and practice this SDR tech.
due to regulatory/ITAR fears very few competent SDR developers have ventured past producing papers on possibly practical covert comms. These papers rarely offer links to open code or over-air experimental results.
The overlay networks darknets tor onions wifi, etc all have plenty of websites, forums, news, mail, ipfs, lbry, git repos, blockchains, etc... that these developers could post their papers and code to. With the relavant links or object reference hashes copied out to places like cypherpunks/me, if they want. What links are there to existing [repositories of] such topical papers?
participants (2)
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grarpamp
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Karl