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In high level amplitude modulation, power in the sidebands comes from _________

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In high level amplitude modulation, power in the sidebands comes from _________

(a) Modulating amplifier

(b) RF amplifier

(c) Driver stage

(d) Carrier

The question was posed to me in an online quiz.

The query is from SSB with Large Carrier in portion Side Band Techniques of Analog Communications

1 Answer

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Right option is (a) Modulating amplifier

Easy explanation: In amplitude modulated system, amplitude of the carrier wave is varied in proportion to the amplitude of the original message wave which is to be transmitted. For high level amplitude modulation, power amplifiers are not required and modulating amplifiers is used to give power to sidebands.

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