ALL meanings of automatic gain control
au·to·mat·ic gain con·trol
A a - noun automatic gain control control of a radio receiver in which the gain varies inversely with the magnitude of the input, thus maintaining the output at an approximately constant level 3
- noun automatic gain control Automatic gain control is a circuit that modulates an amplifier's gain, in response to the relative strength of the input signal, in order to maintain the output power. 3