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Channel noise level

Summary

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In telecommunications, the term channel noise level has the following meanings:

  1. The ratio of the noise in the communication channel at any point in a transmission system to an arbitrary level chosen as a reference.[a][b]
  2. The noise power spectral density in the frequency range of interest.
  3. The average noise power in the frequency range of interest.

See also edit

Notes edit

  1. ^ The channel noise level may be expressed in (a) dB above reference noise (dBrn), (b) dB above reference noise with C-message weighting (dBrnC), or (c) adjusted dB (dBa).
  2. ^ Each unit used to measure channel noise level reflects a circuit noise reading of a specialized instrument designed to account for different interference effects that occur under specified conditions.

References edit

  •   This article incorporates public domain material from Federal Standard 1037C. General Services Administration. Archived from the original on 2022-01-22. (in support of MIL-STD-188).