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Automatic Gain Control (AGC) is the the automatic regulation (electronically) of the gain of a receiver in inverse proportion to the received signal strength. This allows, within certain limits, the audio output of a receiver to remain relatively constant over a range of fading signal conditions. Automatic Gain Control circuit automatically adjusts the input gain of a device, in order to provide a safe and consistent signal level. AGCs can be handy features, but professional applications often require manual gain control for optimum results. |
