FIELD: radio engineering, communication.
SUBSTANCE: device consists of a message source, a scrambler, a decoder, the first, second, third, fourth frequency synthesizers, the first, second, third, fourth, fifth, sixth, seventh, eighth slave keys, the first, second, third, fourth adders, the first, second, third, fourth pseudo-random sequence generators, a shift register, AND circuit.
EFFECT: increased noise immunity of signals with four-position manipulation with limited frequency resource of the radio link.
1 dwg
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