FIELD: radio engineering, discrete information transmission. SUBSTANCE: device has transmitting side NOT gate, first and second pulse formers, first and second forming LFM filters, adder, transmitter, code converter, multiplier and on receiving side first and second matched LFM filters, first and second envelope detectors, comparator, first and second adders, first and second time-gating units, clock synchronizer, first and second pulse expansion units, linear path, receiver, delay line, multiplier, low-pass filter. Additional stage of modulation - relative phase modulation which helps to form continuous LFM signal phase-keyed by information message from second source is inserted on transmitting side. EFFECT: increased volume of transmitted information. 3 dwg
