What is the purpose of the squelch circuit in a receiver?

What is the purpose of the squelch circuit in a receiver?

A. To attenuate very strong signals in order to prevent their overdriving the remaining stages in the receiver
B. To suppress receiver noise output when no input signal is being received
C. To suppress the electronic “whine” of the rf amplification stage
D. To reject signals of other than the desired frequency should the receiver drift off frequency

Show Answer

Answer: B

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