SSB transceiver

Details SSB transceiver SSB transceiver

1977-08-22

1980-02-12

Griffin, Robert L.

325 50, H04B 140

Patent

active

041885791

ABSTRACT:
Two pilot signals each transmitted with a predetermined but different frequency are demodulated in the receiving station and sent to a control circuit controlling a saw-tooth wave form voltage generator which is continually varying the frequency of an automatic tuner. The control circuit acts to stop the voltage generator when the demodulated pilot signals have a frequency equal to the predetermined frequency. The received signal can thus be automatically tuned to the transmitted signal.

REFERENCES:
patent: 3320535 (1967-05-01), Broadhead, Jr.
patent: 3413554 (1968-11-01), Yates
patent: 3641434 (1972-02-01), Yates
patent: 3983484 (1976-09-01), Hodama
patent: 4061974 (1977-12-01), Fletcher

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