DocumentCode
1381987
Title
Recording and visual analysis of noise errors
Author
Johanson, A. E.
Author_Institution
Bell Telephone Laboratories, Inc., Murray Hill, N. J.
Volume
81
Issue
2
fYear
1962
fDate
5/1/1962 12:00:00 AM
Firstpage
90
Lastpage
94
Abstract
In a recent data transmission test, a method for visually evaluating the causes of errors was tried. Photographic reproductions of error messages were produced by the combined use of a magnetic tape recorder and a recording oscillograph. These were analyzed visually and the errors classified by cause into eight categories. In several of these categories, the fault lies in the terminal equipment, in the rest, apparently in the transmission channel. Examples are given of various types of errors encountered.
Keywords
Companies; Magnetic recording; Noise; Power cables; Repeaters; Synchronization; Visualization;
fLanguage
English
Journal_Title
American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the
Publisher
ieee
ISSN
0097-2452
Type
jour
DOI
10.1109/TCE.1962.6373211
Filename
6373211
Link To Document