automatic gain control

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Related to AGC circuit: Automatic volume control

automatic gain control

n
(Electronics) 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. Abbreviation: AGC
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References in periodicals archive ?
This approach raises some concerns, such as the narrow gain control range and limitation of dynamic range of whole AGC circuit.
The same basic AGC circuit may be used, but this time the transmitted power may need to be dynamically adjusted.
To prevent the circuit from unintended operation in noisy environments, a valid preamble signal with a minimum of 192 periods is necessary to activate the AGC circuit.
The device includes a one-step AGC circuit that drops the LNA gain by 35 dB when the RF input signal is greater than -57 dBm.