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Which circuit in FM receivers cancels or filters out noise?

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Which circuit in FM receivers cancels or filters out noise?

(a) Filter circuits

(b) Anti-noise circuits

(c) Limiter circuits

(d) delimiter circuits

This question was posed to me in examination.

I'm obligated to ask this question of Noise Suppression Effects of FM in division Amplitude & Frequency Modulation of Avionics

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Right answer is (c) Limiter circuits

Explanation: The receivers in FM contain limiter circuits which restrict the amplitude of the received signal. The noise which only affects the amplitude of the signal causes variations in amplitude of the signal. The limiter circuit clips off any variation in amplitude to filter out most of the noise.

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