A carrier signal with power of 40W is
amplitude modulated by a sinusoidal
signal. Compute the power of modulated
signal if the modulation index is 0.7.
Answers
Answered by
2
Answer:
carrier signal with power of 40W is
amplitude modulated by a sinusoidal
signal. Compute the power of modulated
signal if the modulation index is 0.7.
Answered by
1
Answer:
50 V
Explanation:
Correct option is
A
50V
Frequency of carrier, fc=1MHz=1000kHz
Frequency of signal, fs=5kHz Modulation factor, m=25%=2.5
Amplitude of carrier, EC=40VThe lower and upper sideband frequencies are :fc−fsandfc+fsor(1000−5)kHzand(1000+5)
995kHz, and 1005kHz
Amplitude of each side band term=mEc/2=2.5×40/2
=50.0V
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