Ashen-Witch There seems to be an affordable SDR on the "fish" (likely referring to a website or forum). I haven't looked closely yet.
BG5ELQ You can't compare a 200 yuan radio to a handheld full-band receiver/scanner that costs several thousand yuan. A device with strong signal capability will naturally produce sound.
ping BG5ELQ I've brought along a BPM receiver (I have this particular obsession with it, so I think it should work).
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