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  "A rose by any other name would smell as sweet"  -- Bill
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On off keying at 1,000khz is AM transmitting though?
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AM is short for Amplitude Modulation, and by definition needs a carrier wave. This is more like controlled interference, still impressive though.
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But on-off keying is amplitude modulation… just with a 100% modulation index..

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

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