What is the permissible limit for the depth of modulation?

It may assume any value
It must remain below 100%
It must be greater than 100%
It must be exactly 100%

Correct answer: It must remain below 100%

Solution

The depth of modulation refers to the extent to which the amplitude of a carrier wave is varied by the modulating signal. For effective modulation, it must remain below 100% to avoid distortion and ensure that the signal can be properly demodulated.

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