A message signal of frequency f m is used to modulate a carrier of frequency f c . If the side bands are f 1 and f 2 then the ratio f c f m is

Question

A message signal of frequency f m is used to modulate a carrier of frequency f c . If the side bands are f 1 and f 2 then the ratio f c f m is, f 1 + f 2 f 2 - f 1, f 1 + f 2 2 f 1 f 2, f 1 - f 2 f 2 + f 1, f 1 f 2 f 1 + f 2 2

MARKS App · Accepted Answer

The frequency of message signal is always less than carrier frequency and the frequency of the message signal is, f m = f 1 - f 2 and the frequency of carrier signal is, f m = f 1 + f 2 , so the value of, f c f m = f 1 + f 2 f 1 - f 2 .

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