Duplex microwave radio communication system

Details Duplex microwave radio communication system Duplex microwave radio communication system

1978-09-29

1980-11-04

Stewart, David L.

Multiplex communications

Wide area network

Packet switching

340 48, 375 5, 370 31, H04L 514

Patent

active

042323185

ABSTRACT:
A duplex microwave radio communication and telemetry system for transmitting analog and digital data between fixed stations as well as to mobile stations wherein the microwave oscillator is stabilized by utilizing a free running oscillator which is controlled in frequency with the incoming modulation input and the output of the free running oscillator is supplied to a phase comparator and to a multiplier and the multiplier supplies an output to a mixer which also receives a portion of the input from the microwave oscillator and supplies an input to the phase comparator to provide a control signal for controlling the frequency of the microwave oscillator.

REFERENCES:
patent: 4038653 (1977-07-01), Brewster
patent: 4109202 (1978-08-01), Kudsia
patent: 4115708 (1978-09-01), Liu

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