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An amplifier is an
|“||[e]lectronic component use to boost (amplify) signals. Performance (called gain) [is] measured in decibels.||”|
"In an analog system, the signal weakens and becomes corrupted by noise and distortion as it moves along a wire, unless it is regularly boosted by amplifiers. But amplifiers cannot distinguish signal from noise, and they boost both, while adding some additional noise and distortion. These distortions accumulate over a long transmission path until the desired signal may become almost unintelligible."
- ↑ Glossary of Communication Electronic Terms, at 2-5.
- ↑ U.S. Telecommunications Services in European Markets, at 25 n.1.