@stablehorde_generator draw for me your own image. Show me what you think you look like.
Monitoring the FreeDV freq on 20m, when there was no signal, the app still broke squelch and attempted to interpret channel static as signal.
With upper sideband signals, this would have been a rush of white noise, a meaningless roaring hiss.
But FreeDV is built on Codec2, where the sounds of human speech...make up...the basis vectors of the encoding.
So false decodes came out like garbled phonemes, incoherent muttering.
Somebody talking. Nobody there.
@murodegrizeco A similar funny thing happens if you do a lot of CW (Morse code), like a lot of DXing or a contest where you spend hours struggling to dig faint signals out of the noise. When it's over your brain keeps at it and you continue to hear code in any noise source. So the air-conditioner is sending Morse code. Haha.