FIELD: broadcasting and television systems. SUBSTANCE: modulated waves are transmitted with the use of large-duration pulses at multiple frequencies (31, 32, 33, 3N). Two adjacent frequencies are spaced at 1/T from each other where T is duration of transmission useful intervals. Method is used for transmission and reception of radio and television signals in devices receiving the analog and/or digital information, in telephone communication systems between automatic telephone stations, in telephone communication systems between radio-telephones and communication stations, in systems of radioelectronic communication between ground stations and satellites, in communication systems between satellites, in systems of acoustic communication in air and/or water and in local computer networks. It is good practice to use the given method in high-quality broadcasting systems, as well as in high- resolution television and/or in digital television. EFFECT: reliable transmission. 18 cl, 28 wdgt
