Re: Looking for software for HF RTLSDR reception with Pi


Hi John,

I had similar experience with GQRX on Pi 3B+. Reducing the sampling rate to 1Msps or lower helped somewhat, but it was still not stable.
For HF, I built a homebrew downconverter using a diode ring mixer and 48MHz canned oscillator. Also tried FST3157 KISS mixer, with even better results.
For demodulation without GUI, CSDR utility works great. CPU usage is in single % range, and the temperature stays low.

73, Mike AF7KR

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