The value of a change in frequency of the carrier wave by the modulating signal is called as?(a) Maximum modulation frequency(b) Maximum carrier frequency(c) Frequency deviation(d) Modulating frequency deviationThis question was addressed to me during an interview.This interesting question is from Frequency, Phase Modulation, Modulation Index and Sidebands topic in division Amplitude & Frequency Modulation of Avionics

The value of a change in frequency of the carrier wave by the modulati

1.	The value of a change in frequency of the carrier wave by the modulating signal is called as?(a) Maximum modulation frequency(b) Maximum carrier frequency(c) Frequency deviation(d) Modulating frequency deviationThis question was addressed to me during an interview.This interesting question is from Frequency, Phase Modulation, Modulation Index and Sidebands topic in division Amplitude & Frequency Modulation of Avionics
Answer» The correct choice is (c) Frequency deviation For explanation I would SAY: The amount of carrier frequency change by the MODULATING SIGNAL is referred to as the frequency deviation. The MAXIMUM frequency deviation OCCURS when the amplitude of the modulating signal is maximum.

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