Straight-through-repeater

Details Straight-through-repeater Straight-through-repeater

1979-02-26

1981-02-24

Safourek, Benedict V.

Telecommunications

Carrier wave repeater or relay system

With frequency conversion

455 23, H04B 7165

Patent

active

042531918

ABSTRACT:
The present invention discloses a straight-through-repeater which relays a frequency-modulated microwave signal. The straight-through-repeater is basically comprised of a phase-locked loop circuit located between receiving and transmitting antennas of the repeater. The phase-locked loop circuit has a demodulating capability for reproducing a baseband signal, a power amplifying capability, a very narrow filtering capability, an automatic gain controlling capability and an amplitude limiting capability. The repeater is further comprised of a means for suppressing a step-out of synchronism occurring in the phase-locked loop circuit.

REFERENCES:
patent: 2296384 (1942-09-01), Hansell
patent: 2747083 (1956-05-01), Guanella
patent: 3201691 (1965-08-01), Lyon
patent: 4035727 (1977-07-01), Ishii
patent: 4061979 (1977-12-01), Walker et al.
patent: 4134068 (1979-01-01), Richardson

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