Source: wikibot/carrier-to-noise-ratio
= Carrier-to-noise ratio
{wiki=Carrier-to-noise_ratio}
Carrier-to-noise ratio (C/N or CNR) is a measure used in telecommunications and signal processing to quantify the level of a desired signal (the carrier signal) relative to the background noise level. It is expressed in decibels (dB) and is a crucial factor in determining the quality of a communication link.