Title :
Carrier application to a telegraph plant
Author :
Smith, R. E. ; Kelley, L. A.
Author_Institution :
Postal Telegraph-Cable Co., New York, N. Y.
Abstract :
Carrier communication has been found to provide an economical means of conveying not onlytelephonic but also telegraphic information. This article describes the transmission and equipment features of a 10-channel system recently developed for 4-wire operation in a strictly telegraph plant, and includes performance characteristics showing capabilities of the system.
Keywords :
Couplings; Frequency modulation; Generators; Printers; Relays; Repeaters; Wires;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1932.6430058
