Define modulation index.Why is its value kept,in practice less than one?

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communicationsystem

#1

Define modulation index. Why is its value kept,in practice less than one? A carrier wave of frequency 1.5 MHz and amplitude 50 V is modulated by a sinusoidal wave of frequency 10 kHz producing 50% amplitude modulation. Calculate the amplitude of the AM wave and frequencies of side bands produced.


#2

Amplitude modulation index is the ratio of the modulating signal to the maximum amplitude of carrier wave.

These are the required frequencies of the side bands produced.