Publications

T H - 3 radio in its overall systems equipment concept for 4000-mile long-haul radio is almost identical to TD-3 radio.

Point-to-point microwave radio systems require surveillance and maintenance to insure high-quality performance and reliability.

Protection switching systems providing continuity of message service are a necessary part of many radio communication systems.

This paper discusses a radio system which has been made available to the Associated Bell System Companies to help meet their demands for high-performance transmission capability.

FM terminals perform the initial and final modulation steps in non-remodulating type microwave radio systems.

The microwave generator serves as a low-noise, frequency stable source of beat oscillator power for use in the microwave transmitters and receivers of the TH-3 system.

A series of four high-performance, functionally integrated, microwave circuits has been developed for use in the 6-GHz TH-3 radio system.

Vol. 50, No. 7, September, 1971 Printed in U.S.A. TH-3 Microwave Radio System: Microwave Transmitter and Receiver By A. H A M O R I and R. M.

The T H - 3 radio repeater makes use of three modulators: a receiver modulator for frequency downconversion, a shift modulator for frequency translation, and a transmitter modulator for frequency u

The frequency selectivity required by the microwave transmitter and receiver of the T H - 3 radio system is provided by passive networks.