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Frequency modulation technique involves

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Frequency modulation technique involves

(a) Data modulation

(b) Frequency hopping modulation

(c) Data & Frequency hopping modulation

(d) None of the mentioned

I have been asked this question in an interview for internship.

Question is from Spread Spectrum, TDMA and FDMA topic in chapter Multiplexing and Multiple Access of Digital Communications

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Best answer
The correct answer is (c) Data & Frequency hopping modulation

Best explanation: The FH modulation is considered as a two step process. It includes data modulation and frequency hopping modulation.

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