AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency
On Jun 30, 3:46 pm, Jeff Liebermann wrote:
With AM, it's ALWAYS the high frequency
that acts as the carrier
and the lower that acts as the modulation.
In AM, isn't the carrier the signal which always maintains a constant
frequency and only varies by amplitude?
If a carrier signal varies by anything other than just amplitude, then
it isn't AM. Right?
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