What is frequency deviation?

Q.  The increase or decrease in the frequency around the carrier frequency is termed as
- Published on 14 Oct 15

a. Figure factor
b. Frequency deviation
c. Modulation index
d. Frequency pectrum

ANSWER: Frequency deviation
 
In FM, as the amplitude of the modulating signal changes, the frequency of the carrier changes from its central frequency. This is known as Frequency Deviation.

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