A 10 MHz sinusoidal carrier wave of amplitude 10mV is modulated by a 5 kHz sinusoidal audio signal wave of amplitude 6mV. Find the frequency components of the resultant modulated wave and their amplitudes.
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Solution
Data given:
Frequency of carrier=fc=10MHz
frequency of the signal=fs=5KHz=0.005MHz
Amplitude of carrier signal=Ec=10mV
Amplitude of audio signal=Es=6mV
solution
The modulated carrier wave contains the folloeing frequencies: