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Balance modulator is used to produce __________

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Balance modulator is used to produce __________

(a) DSB

(b) VSB

(c) AM

(d) SSB

The question was asked in an online interview.

This intriguing question comes from Phase Shift Method topic in section SSB Modulation of Analog Communications

1 Answer

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Correct choice is (a) DSB

Explanation: A balance modulator mixes audio signal and radio frequency carrier wave, thereby producing a DSBSC wave, by suppressing the carrier. In DSB_SC, only the two sidebands are present. Thus, it has less power consumption.

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