DocumentCode
1418687
Title
Line problems in the development of the 12-channel open-wire carrier system
Author
Ilgenfritz, L. M. ; Hunter, R. N. ; Whitman, A. L.
Author_Institution
Bell Telephone Laboratories, Inc., New York, N. Y.
Volume
58
Issue
12
fYear
1939
Firstpage
656
Lastpage
665
Abstract
The development of the type J 12-channel carrier telephone system for open-wire lines required an increase of nearly 5 to 1 in the transmission frequency range of the lines. In the provision of suitable line facilities a number of new problems were encountered with respect to attenuation, noise and cross talk. Methods for meeting these problems and the results obtained are described.
Keywords
Absorption; Attenuation; Ice; Meteorology; Porcelain; Reflection; Wires;
fLanguage
English
Journal_Title
Electrical Engineering
Publisher
ieee
ISSN
0095-9197
Type
jour
DOI
10.1109/EE.1939.6431690
Filename
6431690
Link To Document