DocumentCode
933451
Title
The Calibration of Amplitude Modulation Meters with a Heterodyne Signal
Author
Macdonald, John R.
Author_Institution
Texas Instruments Inc., Dallas, Texas
Volume
42
Issue
10
fYear
1954
Firstpage
1515
Lastpage
1518
Abstract
Errors which may occur in the calibration of peak or average reading amplitude modulation meters with a heterodyne signal are investigated in detail. Relations between the heterodyne-amplitude ratio M and the true modulation factor m of a sinusoidally modulated wave are derived. Using these results, heterodyne calibration of modulation analyzers to read m exactly can readily be carried out.
Keywords
Amplitude modulation; Bridge circuits; Calibration; Correlators; Diodes; Distortion measurement; Filters; Frequency; RF signals; Signal analysis;
fLanguage
English
Journal_Title
Proceedings of the IRE
Publisher
ieee
ISSN
0096-8390
Type
jour
DOI
10.1109/JRPROC.1954.274731
Filename
4051555
Link To Document