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Chapter Objectives
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  • Calculate the modulation index and percentage of modulation of an AM signal, given the amplitudes of the carrier and modulating signals.
  • Define overmodulation and explain how to alleviate its effects.
  • Explain how the power in an AM signal is distributed between the carrier and the sideband, and then compute the carrier and sideband powers, given the percentage of modulation.
  • Compute sideband frequencies, given carrier and modulating signal frequencies.
  • Compare time-domain, frequency-domain, and phasor representations of an AM signal.
  • Explain what is meant by the terms DSB and SSB and state the main advantages of an SSB signal over a conventional AM signal.
  • Calculate peak envelope power (PEP), given signal voltages and load impedances.









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