Communication systems

Pulse or digital communications – Repeaters – Testing

Patent

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Details

375102, 375103, 455303, H04K 110, H04B 110

Patent

active

043982964

ABSTRACT:
There is disclosed a communication system wherein the transmitter and receiver synchronously change frequency during transmission of information and wherein each frequency to be used before transmission of information on that frequency is examined and as a result of such examination the receiver is adjusted to attempt to reduce the detrimental effects of interfering signals.

REFERENCES:
patent: 3160813 (1964-12-01), Biggi et al.
patent: 3443228 (1969-05-01), Brenner et al.
patent: 3475684 (1969-10-01), Covill
patent: 3932818 (1976-01-01), Masak

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