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Communication SystemsAmplitude Modulation

For a conventional AM signal with modulation index m=1, the total transmitted power relative to carrier power Pc is?

  • APc
  • B1.25Pc
  • C1.5Pc
  • D2Pc
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Correct Answer: C. 1.5Pc
Explanation: For single-tone AM, Pt=Pc(1+m^2/2). At m=1, Pt=1.5Pc.
Reference: Standard communication systems: amplitude modulation
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