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Sideband suppression ratio measures

  • A.The carrier's residual level relative to the sidebands
  • B.The intermodulation distortion at full output
  • C.How far the unwanted sideband is below the wanted one
  • D.The ratio of peak to average power

Answer: C

It is the level of the unwanted sideband relative to the wanted one, typically forty to sixty decibels down in a good transmitter, and it is limited by filter shape in the filter method or by network accuracy in the phasing method. Peak to average is the crest factor. Carrier residual is carrier suppression, a separate specification. And intermodulation is a linearity measure, also separate.

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