Communication Engineering MCQ: When the modulating frequency is doubled the modulation index is halved, and the modulating voltage remains constant. The modulation system is: 1 Amplitude 2 Phase Modulation 3 Frequency Modulation ?

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When the modulating frequency is doubled the modulation index is halved, and the modulating voltage remains constant. The modulation system is: 1 Amplitude 2 Phase Modulation 3 Frequency Modulation ?

Correct Answer: Only I

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