DocumentCode
905819
Title
An experimental fast acting AGC circuit
Author
Hopper, A.L.
Volume
11
Issue
1
fYear
1958
fDate
7/1/1958 12:00:00 AM
Firstpage
65
Lastpage
72
Abstract
Conventional backward-acting AGC circuits acting fast enough to counteract rapid fading will, if stable, suppress neighboring voice frequencies. However, forward-acting AGC is inherently stable, so it can be made very fast by inserting a sharp cut-off filter in the control path. This permits the suppression of 200 cps. fading with negligible effect on the 300-3,000 cps. voice band. Analysis and tests show that fading modulation products are suppressed by about 20 db.
Keywords
Band pass filters; Circuits; Communication system control; Delay; Envelope detectors; Fading; Frequency; Laboratories; Low pass filters; Telephony;
fLanguage
English
Journal_Title
IRE Transactions on Vehicular Communications
Publisher
ieee
ISSN
0097-6628
Type
jour
Filename
1621773
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