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Communication Systems
A carrier wave of peak voltage 15 V is used to transmit a message signal. Find the peak voltage of the modulating signal in order to have a modulation index of 60%.
It is given that peak voltage of carrier wave, Ac = 15V
and, Modulation index, mu = 60% = 60/100
Then, the peak voltage of the modulating signal (Am) will be given by the relation,
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