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ECE · Q210

Communication Systems

Engineering and GATE · ECE · question 210

Q210

A carrier of frequency 1 MHz is amplitude modulated by a signal of frequency 1 kHz to a depth of 60%. This is passed through a filter of characteristics shown in the given Figure-I and Figure-II. If the filter output is fed to an envelope detector, the detector output will be

A carrier of frequency 1 MHz is amplitude modulated by a signal of frequency 1 kHz to a depth of 60%. This is passed through a filter of characteristics shown in the given Figure-I and Figure-II. If the filter output is fed to an envelope detector, the detector output will be
Communication Systems mcq question image
A.
zero
B.
dc
Answer
C.
dc + 1 kHz signal
D.
1 kHz signal

Answer: Option B

Solution

Answer: Option B
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