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What is the main function of a balanced modulator?

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What is the main function of a balanced modulator?

(a) to limit the noise picked by a receiver

(b) to produce balanced modulation of a carrier wave

(c) to suppress carrier signal

(d) to produce 100% modulation

The question was asked by my college professor while I was bunking the class.

This interesting question is from Applications of SSB topic in chapter SSB Modulation of Analog Communications

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Correct answer is (d) to produce 100% modulation

Explanation: For achieving 100% modulation, balanced modulator is mainly used in circuits.

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