Patent
1976-02-13
1977-03-15
Griffin, Robert L.
325 51, H04B 300
Patent
active
040126625
ABSTRACT:
A leaky feeder radio transmission system uses twin feeders connected respectively to a transmitter and receiver at a base station. The feeders are connected at intervals by uni-directional amplifiers which, alternately along the lines, are connected for conduction in opposite directions. Filters are positioned in the line between amplifier connection points. A mobile station adjacent to the feeders receives signals at one frequency from the feeders and transmits signals at a second frequency.
REFERENCES:
patent: 3585505 (1971-06-01), Ogilvy
patent: 3588372 (1971-06-01), Jauquet
patent: 3629707 (1971-12-01), Baba
patent: 3896380 (1975-07-01), Martin
Coal Industry (Patents) Limited
Griffin Robert L.
Ng Jin F.
Wray James C.
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