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by tfwnopmt 425 days ago
Isn't it only 20000 km to the other side of the world?
1 comments
beardyw 425 days ago
This is to a satellite, so the distance is correct and has line of sight. The main enabler is a hack to the ESP firmware (done elsewhere) which changes the frequency from the WiFi frequency.

[And it's morse code, which simplifies things a lot]

link
ahazred8ta 425 days ago
15mW, and a very good antenna
link