Secure communication and ranging system

Details Secure communication and ranging system Secure communication and ranging system

1961-02-08

1980-06-03

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

178 22, 179 15R, 343 65R, 343 12R, 375 2, 455 28, 455 30, H04K 100

Patent

active

042064627

ABSTRACT:
15. In a secure communication system a transmitter comprising first means to modulate a carrier wave with a sub-carrier wave and a desired signal, a code generator synchronized to said sub-carrier wave, second means to modulate the output of said first modulating means with the output of said code generator, and means to transmit the output of said second modulating means to a distant receiver.

REFERENCES:
patent: 3016519 (1962-01-01), Lindner

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