DocumentCode
1457347
Title
Co-ordinating M1 and N1 telephone carrier systems
Author
Smith, E. P. ; Cornell, L. P. ; Jerome, M. G.
Author_Institution
Pacific Telephone and Telegraph Company, San Francisco, Calif.
Volume
72
Issue
9
fYear
1953
Firstpage
780
Lastpage
780
Abstract
THE BELL SYSTEM´s new N1 carrier system is a low-level cable carrier system providing 12 4-wire telephone channels in the frequency range of 44 to 260 kc. Because of its low levels, the N1 system is particularly susceptible to interference from other existing carrier systems with over lapping frequencies and higher energy levels.
Keywords
Amplitude modulation; Associate members; Couplings; Crosstalk; Radio spectrum management; Wires;
fLanguage
English
Journal_Title
Electrical Engineering
Publisher
ieee
ISSN
0095-9197
Type
jour
DOI
10.1109/EE.1953.6438215
Filename
6438215
Link To Document