Title :
A Broad-Band Microwave Relay System between New York and Boston
Author :
Thayer, G.N. ; Roetken, A.A. ; Friis, R.W. ; Durkee, A.L.
Author_Institution :
Bell Telephone Laboratories, Inc., New York, N.Y.
Abstract :
This paper describes the principal features of a broad-band microwave relay system which has recently been installed between New York and Boston. The system operates at frequencies around 4,000 Mc and provides two two-way channels, each accommodating a signal-frequency band extending from 30 cps to 4.5 Mc. Noise and distortion characteristics are satisfactory for the transmission of several hundred simultaneous telephone conversations or a standard black-and-white television program.
Keywords :
Associate members; Circuit noise; Distortion; Frequency conversion; Microwave propagation; Relays; Repeaters; Senior members; TV; Telephony;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1949.230944
