Decibel above reference noise level using C-message weighting definition

Decibel above reference noise level using C-message weighting. (dBrnC) means the reference noise level of one Pico watt that is defined as 0 dBrnC. C-message weighting accounts for the frequency characteristics of a typical telephone set by weighting the noise signal at various frequencies to calculate the composite average noise signal value.
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Related to Decibel above reference noise level using C-message weighting

  • Digital Signal Level 0 (DS-0) means the lowest-level signal in the time division multiplex digital hierarchy, and represents a voice-grade channel operating at either the 56 Kbps or 64 Kbps transmission bit rates. There are twenty-four (24) DS-0 channels in a DS-1.