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Which statement is true about ring modulator?

(a) it is used for DSB-SC generation

(b) it is used for SSB-SC generation

(c) it is a summation modulator

(d) it is used for AM generation

The question was posed to me during an interview.

Origin of the question is Pre Emphasis and De Emphasis topic in chapter Receivers & Transducers of Analog Communications

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Correct option is (a) it is used for DSB-SC generation

The explanation: Ring Modulator is used for generating DSB-SC waves. It is a product modulator having four diodes connected in the form of a ring, which suppresses the carrier and allows only the two sidebands to be passed.

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