Narrow band communication system

Details Narrow band communication system Narrow band communication system

1990-01-29

1993-07-20

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

Single message via plural carrier wave transmission

455 71, 455 88, 455318, H04B 700, H04B 126

Patent

active

052300862

ABSTRACT:
A narrow band modulation UHF/Microwave communication system comprises a transmit/receive base station having a plurality of transmitter for transmitting information at respective UHF/Microwave channel frequencies to a plurality of remote transmit/receive stations, in which the transmitters at the base station are served in common by a single master oscillator and in which a single reference frequency signal is derived from the master oscillator at the base station and transmitted to all of said remote stations where it serves to provide for frequency locking of the oscillators at said stations to produce synchronization between the frequencies at the base station and the remote stations.

REFERENCES:
patent: 3683279 (1972-08-01), Weinberg et al.
patent: 3778716 (1973-12-01), Stokes
patent: 3942115 (1976-03-01), Wolejsza et al.
patent: 4442527 (1984-04-01), Munday
patent: 4618996 (1986-10-01), Rafal et al.
patent: 4761821 (1988-08-01), Mawhinney et al.

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