SINAD

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SINAD is the abbreviation for SIgnal-to-Noise-And-Distortion. It is the ratio of the signal to the noise-and-distortion component. This is calculated as one of:

  1. The ratio of (a) total received power, i.e., the signal to (b) the noise-plus-distortion power.
  2. The ratio of (a) the power of original modulating audio signal, i.e., from a modulated radio frequency carrier to (b) the residual audio power, i.e., noise-plus-distortion powers remaining after the original modulating audio signal is removed.

The SINAD is usually expressed in dB.

This article contains material from the Federal Standard 1037C (in support of MIL-STD-188), which, as a work of the United States Government, is in the public domain.

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