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Amplifier circuit for an intermediate-frequency signal of a radio receiver
Amplifier circuit for an intermediate-frequency signal of a radio receiver
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机译:无线电接收机中频信号的放大电路
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摘要
The circuit (7, 8, 9, 10) comprises, in addition to the automatic gain control (AGC), a gain reduction means for controlling the gain of an amplifier (8), intended to avoid the desynchronization of the local oscillator (7) controlled by a phase-locked loop comparator (12). This is controlled by a peak detector of the amplified signal situated at the output of the amplifier (8).
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