AGC_WITH_MANUAL_CONTROL

Published:2009/6/30 22:13:00 Author:May | From:SeekIC

Used in 1.8-2 MHz communication receiver having wide dynamic range. R3 serves as manual IF gain control. R2 provides gain variation from 6 to 40 dB for AGO amplifier. Delay is about 1 s. Input is taken from primary of transformer that drives product detector of receiver, and AGC output goes to CA3028A IF opamp. Two-part article gives all other circuits of receiver.-D. DeMaw, His Eminence-the Receiver, QST, Part 2-July 1976, p 14-17 (Part 1-June 1976, p 27-30).



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