Channel noise level
Noise measurement in telecommunications
In telecommunications, the term channel noise level has the following meanings:
- 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]
- The noise power spectral density in the frequency range of interest.
- The average noise power in the frequency range of interest.
See also
- Ambient noise level
Notes
- ^ 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).
- ^ 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
- Federal Standard 1037C. General Services Administration. Archived from the original on 2022-01-22. (in support of MIL-STD-188).
