Communication Systems MCQs

Practice questions are arranged in pages of up to 100 MCQs.

Question 1
Communication SystemsAnalog Modulation

In amplitude modulation, which carrier parameter is varied according to the message signal?

  • AFrequency
  • BPhase
  • CAmplitude
  • DWavelength only
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Correct Answer: C. Amplitude
Explanation: In conventional amplitude modulation, the amplitude of the carrier varies with the instantaneous message signal.
Reference: Amplitude modulation fundamentals