Title :
Automatic protection switching for TD-2 radio system
Author_Institution :
Bell Telephone Laboratories, Inc., Murray Hill, N. J.
Abstract :
Intercity transmission of television programs and telephone conversations is now provided via a network of TD-2 microwave radio relay equipment operating on a transcontinental basis. Whenever service interruption threatens because of equipment troubles or atmospheric disturbances in the transmission path, a switching system automatically and quickly substitutes a stand-by wide-band microwave radio channel for the defective channel. The circuits and operation of this switching equipment are described.
Keywords :
Fading; Monitoring; Protection switching; Repeaters; Switches; Switching circuits;
Journal_Title :
American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the
DOI :
10.1109/TCE.1956.6372420
