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Journal Article

Using Distortion Products to Effect Automatic Frequency Control in FM Tuners

Authors: Akiya, Henry; Matsuoka, Susumu; Naito, Michinori

Journal of the Audio Engineering Society · Volume 28 · Issue 6 · pp. 422–428 · June 1980

Abstract

Tuning systems developed for FM tuners are designed to minimize distortion. Recent as well as traditional approaches to this problem have concentrated on the correction of the local oscillator frequency using independent frequency references or a correction voltage developed from an FM demodulator. A frequency correction system based on the direct analysis of distortion products produced in the intermediate-frequency bandpass filter, and the implementation of a system that corrects tuning to effect a null in distortion products are described.

Details

Publication
Journal of the Audio Engineering Society
Volume
28
Issue
6
Pages
422–428
Publication date
June 6, 1980
Affiliation
Trio-Kenwood Corporation, Secaucus, NJ (See document for exact affiliation information.)
Type
Journal Article