FM Receivers MCQs

Practice FM Receivers MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1

Communication SystemsFM Receivers

In FM receivers, a limiter stage is used primarily to?

ARemove unwanted amplitude variations before frequency detection
BIncrease AM modulation index
CGenerate PCM codes
DReduce IF to zero in every design

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Correct Answer: A. Remove unwanted amplitude variations before frequency detection

Explanation: Since ideal FM information is carried in frequency, amplitude variations caused by noise can be clipped or limited before demodulation.

Reference: Standard communication systems: fm receivers

Question 2

Communication SystemsFM Receivers

The capture effect is most strongly associated with?

AFM reception
BIdeal PCM quantization
CPure DSB-SC generation
DTDM framing only

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Correct Answer: A. FM reception

Explanation: In FM, when two signals at nearly the same frequency are present, the stronger signal can dominate receiver output; this is called the capture effect.

Reference: Standard communication systems: fm receivers