Title :
New 12-channel carrier system for extended-area trunk and subscriber service
Author :
Jorgensen, O. A.
Author_Institution :
General Dynamics/Telecommunication, Rochester, N. Y.; Vacuum Electronics Corporation, Plainview, N. Y.
Abstract :
The design considerations and development of a 12-channel carrier system for trunk and subscriber service are described. The dual-sideband AM (amplitude-modulated) system uses one modulation step only and has a grouped and a stacked frequency allocation for use with and without repeaters respectively. Compandors supplied on an optional basis and the use of high-gain amplifiers make it advantageous to use wire and cable facilities at frequencies as high as 350 kc.
Keywords :
Band pass filters; Batteries; Coils; Low pass filters; Modulation; Power supplies; Radar tracking;
Journal_Title :
American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the
DOI :
10.1109/TCE.1963.6373278
