FIELD: radio engineering, digital information transmission. SUBSTANCE: device uses pseudorandom retuning of working frequency. Transmitting part of device has first and second phase modulators, first and second high-frequency switches, NOT gate, adders, mixer, frequency synthesizer, pseudorandom sequence generator. Receiving part of device has mixer intermediate frequency amplifier, demodulator, synchronization unit, pseudorandom sequence generator, frequency synthesizer, first and second phase detectors, first and second gates, NOT gate, OR gate. Goal of invention is achieved by added units to achieve additional information channel using phase manipulation of frequency-shift signal of main information channel. EFFECT: increased throughput capacity. 6 dwg
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