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What is the condition for greatest output power at the transmitter without distortion?

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What is the condition for greatest output power at the transmitter without distortion?

(a) Modulating signal voltage > Carrier voltage

(b) Modulating signal voltage < Carrier voltage

(c) Modulating signal voltage = Carrier voltage

(d) Modulating signal voltage = 0

I have been asked this question in an online quiz.

This interesting question is from Amplitude Modulation and Modulation Index in chapter Amplitude & Frequency Modulation of Avionics

1 Answer

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Correct option is (c) Modulating signal voltage = Carrier voltage

The explanation is: When the modulation index is 1 or the percentage of modulation is 100, modulating signal voltage is equal to the carrier voltage. This results in the greatest output power at the transmitter and the greatest output voltage at the receiver, with no distortion.

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