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by mikeyouse 106 days ago
On off keying at 1,000khz is AM transmitting though?
2 comments

AM is short for Amplitude Modulation, and by definition needs a carrier wave. This is more like controlled interference, still impressive though.
But on-off keying is amplitude modulation… just with a 100% modulation index..

https://en.wikipedia.org/wiki/On–off_keying

Emitting a square wave as RF blithers all over the RF spectrum. At least put a bandpass filter on the thing so it stays in-band.