Precipitation loss compensation and disablement for avoidance of

Details Precipitation loss compensation and disablement for avoidance of Precipitation loss compensation and disablement for avoidance of

1985-03-04

1987-09-29

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

342353, 364517, 455 69, 455 12, H04R 7185, H04B 7185, G01S 1300

Patent

active

046971874

ABSTRACT:
A transmitting power control system is disclosed wherein a master earth station sends a pilot signal to a satellite which retransmits it to the master station as well as to slave earth stations. A beacon signal is also sent from the satellite to the master station which compares it with the received pilot signal and controls its own transmission power level according to the result of the comparison so that the power level of retransmitted pilot signal is maintained constant. A warning signal is sent from the master station to all the slave stations when the received pilot signal decreases below a prescribed value corresponding to a predetermined precipitation. Each slave station receives the pilot signal from the satellite and controls its own transmission power level according to the received pilot signal. A disabling circuit is provided in each slave station to disable the power control function of the own station in response to the warning signal to prevent the satellite from being overloaded by the information signals transmitted from the slave earth stations.

REFERENCES:
patent: 4261054 (1981-04-01), Scharla-Nielsen

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