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If AM transmitter has low level modulation then it has ________

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If AM transmitter has low level modulation then it has ________

(a) high efficiency

(b) poor efficiency

(c) high modulating power

(d) high resistance towards noise

The question was asked in an online interview.

This question is from Time Domain Description in portion Double Sideband Suppressed Carrier Modulation of Analog Communications

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Right answer is (b) poor efficiency

The best I can explain: In low-level modulation, the generated amplitude modulated signal utilizes less power, followed by the AM signal being amplified by a chain of linear amplifiers. However, in high power applications, the amplifiers that follow the modulator stage will be linear amplifiers which will render the whole modulation as inefficient.

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