History Memes

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our last cry (infosec.pub)

submitted 5 months ago by fossilesque@mander.xyz to c/historymemes@lemmy.world

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[–] Rivalarrival@lemmy.today 1 points 5 months ago

The search term you want to look for is "SSTV".

There are a number of other digital modes that allow transmission of characters (RTTY) or any digital data (AFSK, "Packet Radio").