AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency

June 30th 07, 09:46 PM posted to sci.electronics.basics,rec.radio.shortwave,rec.radio.amateur.antenna,alt.cellular.cingular,alt.internet.wireless

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AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency

On Jun 30, 3:32 am, "Mike Kaliski" wrote:

It is not possible to modulate a carrier frequency at a frequency higher
than the carrier frequency.

Why not?

I am getting conflicting answers. Some say it's possible to modulate a
carrier frequency at a frequency higher than the carrier frequency,
others say it isn't.

Who is right?

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