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In frequency modulation, there is a large increase in noise and hence decrease in the signal to noise ratio.

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In frequency modulation, there is a large increase in noise and hence decrease in the signal to noise ratio.

(a) True

(b) False

This question was posed to me in semester exam.

This interesting question is from Hilbert Transform topic in section Double Sideband Suppressed Carrier Modulation of Analog Communications

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The correct answer is (b) False

The best I can explain: In communication system, Signal-To-Noise ratio (SNR) is a measure of the amount of signal present compared to the surrounding noise. It is the ratio of signal power to noise power. Thus in frequency modulation, there is a large decrease in noise and hence increase in the signal to noise ratio.

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