Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1970-05-22
1982-04-06
Tubbesing, T. H.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 75, 343 171PF, G01S
Patent
active
043238971
ABSTRACT:
A system which in response to a received signal, alters the transmit chareristics in a manner that cannot be predicted by any enemy attempting to jam the target detecting device and has no effect on the inherent probability of detecting a target. Any signal passed by the threshold of the receiver is processed and fed to the pulse repetition frequency generator and will randomly change the pulse repetition frequency of the transmitted signal.
REFERENCES:
patent: 3050726 (1962-08-01), Laurent
patent: 3163862 (1964-12-01), Jenny
patent: 3303498 (1967-02-01), Bacon
patent: 3381292 (1968-04-01), Hansen
Creighton Robert A.
Engel Stephen M.
Beers Robert F.
Johnston Ervin F.
Phillips Thomas M.
The United States of America as represented by the Secretary of
Tubbesing T. H.
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