FIELD: radio communications and computer engineering. SUBSTANCE: method involves division of input signal into n-bit blocks according to number of frequency channels used (p = 2^n,), shaping of two binary vectors of pseudorandom sequence, transmitter tuning to carrier frequencies in compliance with codes shaped in the form of binary vectors of pseudorandom sequence, radiation and reception of signal, demodulation, and decoding. Novelty is that carrier frequency is modulated by noise-immune code and transmitter is tuned to two and more carrier frequencies, tuning codes being shaped in the form of binary vectors by modulo p addition of symbols of each binary vector of pseudorandom sequence to those of binary vector block of input signal; decoding is effected by modulo p addition of binary vector symbols of signal built up in one or other frequency channel with matched character of first or second binary vector of pseudorandom sequence, respectively. EFFECT: enhanced noise immunity of communications. 2 cl, 2 dwg
