Re:Turn Raspberry Pi’s GPIO into an FM Transmitter
by simfree on Saturday November 12, 2022 @08:23PM
(#33578980)
You explicitly brought up long distance communication in this thread:
> And even a few micro-watts is sufficient to communicate across town.
> Many years ago the record was "1000 miles per milliwatt" using CW.
Re:Turn Raspberry Pi’s GPIO into an FM Transmitter
by Johnythree on Saturday November 12, 2022 @08:38PM
(#33579067)
Except that both can be true. A few millwats can reach across town, or across the world. The original claim was that "weak signals don't go very far", or some such.
No need for "certain atmospheric conditions".
The point was that very low power signals can go a long, long way.