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Communication SystemsAmplitude Modulation

An AM transmitter has carrier power 400 W and modulation index 0.6. What is the total sideband power?

  • A36 W
  • B72 W
  • C144 W
  • D472 W
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Correct Answer: B. 72 W
Explanation: For single-tone AM, total sideband power=Pc m^2/2=400×0.36/2=72 W.
Reference: Standard communication systems: AM sideband power numerical
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