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Neelam Mittal • 4.57K Points
Extraordinary

Q. A message signals given by m (t) = (1/2) Cos ( )-(1/2) sin ( ) amplitude modulated with a carrier of frequency to generate s (t) = [1+m (t)] Cos ( ). What is the power efficiency achieved by this modulation scheme ?

  • (A) 8.33%
  • (B) 11.11%
  • (C) 20%
  • (D) 25%
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