Exercise: Communication Systems

Questions for: Communication Systems

SSB can be generated by
A:
filter method
B:
phase shift method
C:
weaver's method
D:
none of the above
Answer: D
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Which of the following is true as regards telephone systems?
A:
A larger facility carrying a larger load operates less efficiently than a smaller capacity
B:
A larger facility carrying a lesser load operates more efficiently than a smaller capacity
C:
A larger facility carrying a larger load operates more efficiently than a smaller capacity
D:
A smaller capacity carrying a larger load operates more efficiently than a larger capacity
Answer: C
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Which of the following is most likely to be found in an SSB transmitter?
A:
Class A, RF output amplifier
B:
Class B, RF amplifier
C:
Tuned modulator
D:
Class C, audio amplifier
Answer: B
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Image frequency rejection mainly depends upon
A:
detector
B:
mixer
C:
IF
D:
RF
Answer: A
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The image frequency of a superheterodyne receiver is
A:
created within the receiver itself
B:
not rejected by IF tuned circuits
C:
independent of the frequency of tuning
D:
due to insufficient adjacent channel rejection
Answer: B
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