Analog Communication - Electronic Engineering (MCQ) questions & answers for Q. 13732

Q.  The amount of frequency deviation in FM signal depends on
- Published on 14 Oct 15

a. Amplitude of the modulating signal
b. Carrier frequency
c. Modulating frequency
d. Transmitter amplifier

ANSWER: Amplitude of the modulating signal
 
The amount of frequency deviation or variation in FM signal depends on amplitude of the modulating signal. So in case of audio signals, louder is the sound, more is the frequency deviation in the carrier signal and vice versa. The frequency deviation helps in determining the bandwidth of the FM signal.

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