Title :
A Microwave Relay System
Author :
Thompson, Leland E.
Author_Institution :
RCA Victor Division, Radio Corporation of America, Camden, New Jersey
Abstract :
A method of double-frequency modulation suitable for long-distance transmission of multichannel signals by means of radio-relay stations is described. Propagation, radio-frequency bandwidth, and radio-frequency power are discussed briefly. The signal-to-noise ratio and distortion of the system are shown by theory and experiment. An experimental circuit between Philadelphia and New York is described and the results are given.
Keywords :
Bandwidth; Frequency modulation; Interference elimination; Interference suppression; Microwave circuits; Microwave propagation; Power system relaying; Radio frequency; Relays; Signal to noise ratio;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1946.232919
