In telecommunication, the power margin is the difference between available signal power and the minimum signal power needed to overcome system losses and still satisfy the minimum input requirements of the receiver for a given performance level.
System power margin reflects the excess signal level, present at the input of the receiver, that is available to compensate for (a) the effects of component aging in the transmitter, receiver, or physical transmission medium, and (b) a deterioration in propagation conditions. Synonym system power margin.
Famous quotes containing the words power and/or margin:
“The tendency of things runs steadily to this point, namely, to put every man on his merits, and to give him so much power as he naturally exerts,—no more, no less.”
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—George Eliot [Mary Ann (or Marian)