this post was submitted on 13 Nov 2025
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The other day I got a press release about disaster preparedness for grade school kids.
It made mention of teaching kids how to use a battery powered radio to get information. And it suddenly struck me that my 8 year old nephew likely has never even SEEN an FM radio, much less would know how to tune one to a specific station.
Shit like that makes me feel reaaaaaaallllly old…
Tell em it's analog wi-fi
WiFi is of course radio. We just tune in and listen to it differently.
If you limited your bandwidth to 20 or 30 kHz, you could build a “radio” that you manually tune to a WiFi channel frequency and that produces audible noise. You could then build a 1980’s style modem to convert the audio back into a bitstream that you could run your network connection over.
It would be about many times slower than standard Wifi though modern compression could speed that up a bit.
Yeah, absolutely no channel hopping