automatic gain control(redirected from AGC circuit)
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Related to AGC circuit: Automatic volume control
automatic gain control[¦ȯd·ə¦mad·ik ′gān kən‚trōl]
A control circuit that automatically changes the gain (amplification) of a receiver or other piece of equipment so that the desired output signal remains essentially constant despite variations in input signal strength. Abbreviated AGC.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.