Cubic SDR is another SDR program that I have been playing around with on Linux. So far, I have only been using it with the RTL-SDR V4, just because I haven't figured out how to use it with my Airspy HF+ Dual.
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https://www.youtube.com/watch?v=kmKCHpwjDr4
It's been a while since I have done a Marion's Attic video, and it's been a while since I have used my Grundig Satellit 800.
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https://www.youtube.com/watch?v=BeVE1AAAuu0