A.f.c. disabling circuitry
作者： Erno Borbely
DOI:
关键词: Voltage divider 、 Detector 、 Noise (electronics) 、 Superheterodyne receiver 、 Physics 、 Voltage regulator 、 Dropout voltage 、 Electrical engineering 、 Local oscillator 、 Disturbance voltage
摘要: A superheterodyne f.m. receiver having a manually tunable and voltage local oscillator ratio detector for providing audio output signal a.f.c. in response to received carrier an channel conveying the maintain precise tuning of latter, wherein is provided switch opening logic circuitry responsive controlling open only when (1) exceeds predetermined levels, (2) interchannel noise, including limiter limiting voltage.
lens.org 参考文章(3)
Bates Paul, Harrold William M, A.f.c. circuitry for superheterodyne receivers ,(1969)
Jean H Clark, Stabilized automatic frequency control circuit with noise operated squelch ,(1956)
Hugh H Davids, William R Laitinen, Afc disabling system operative by reducing the d.c. discriminator output to zero ,(1963)