DocumentCode
924559
Title
A Simple Crystal Discriminator for FM Oscillator Stabilization
Author
Ruston, John
Author_Institution
Allen B. DuMont Laboratories, Inc., Passaic, N.J.
Volume
39
Issue
7
fYear
1951
fDate
7/1/1951 12:00:00 AM
Firstpage
783
Lastpage
788
Abstract
A crystal discriminator employing only one quartz crystal and very simple in adjustment is described in detail. The stability of center frequency determination in the presence of frequency modulation and variation of component values is calculated in terms of the circuit parameters, and is shown to be adequate for the requirements of broadcast transmitters. Experimental measurements confirm the results of the theoretical analysis. The discriminator was designed for use in a television aural transmitter, and a brief description is given of the complete FM exciter unit.
Keywords
Circuit stability; Distortion measurement; Frequency measurement; Frequency modulation; Impedance; Resonant frequency; TV broadcasting; Transmitters; Voltage; Voltage-controlled oscillators;
fLanguage
English
Journal_Title
Proceedings of the IRE
Publisher
ieee
ISSN
0096-8390
Type
jour
DOI
10.1109/JRPROC.1951.273674
Filename
4050634
Link To Document