Communications transmission system for electromagnetic waves

Details Communications transmission system for electromagnetic waves Communications transmission system for electromagnetic waves

1986-09-12

1988-09-06

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

371 68, 375 58, 375100, 455 69, 455138, H04B 708

Patent

active

047698250

ABSTRACT:
A communication transmission system for electromagnetic waves comprising a transmitter, transmitting and receiving antenna with a radio link hop therebetween and a receiver having an associated diversity receiver. When there is no access to energy supply, network energy is supplied from batteries, solar systems and other power supplies which have limited power and are expensive. So as to provide energy saving operation of a system, a digital system is created and the invention provides a fade detector in the receiver for fast recognition of fading and which produces signals corresponding to the weighted switching thresholds that are derived for the connection of the diversity receiver which had previously been disconnected so as to reduce power consumption and for setting by reducing or increasing the transmission power or for the IF through connecting by way of a plurality of radio link hops or for the compensation or cancellation thereof.

REFERENCES:
patent: 3151295 (1964-09-01), Haviland
patent: 3315164 (1967-04-01), Ferguson, Jr. et al.
patent: 3390335 (1968-06-01), Miyagi
patent: 4004224 (1977-01-01), Arens et al.
patent: 4194153 (1980-03-01), Masaki et al.
French Publication, Communication & Transmission No. 316, 6(1984), Sep., No. 3, Entitled Systems Hertziens 140 MBIT/S A 4 ET 6 GHZ STN 65-140-STN 36-140.

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