FIELD: electric and radio communication. SUBSTANCE: invention can be used for transmission of multichannel and single-channel messages under start-stop and continuous conditions over radio, radio relay, optical and space communication lines. Technical result of invention consists in reduction of pulse power of transmitter and in provision of star- stop condition of operation. With this in mind transmitting side is inserted with pulse counter and multiplexer connected in series and receiving side is supplemented with storage circuit and threshold unit connected in series. By this probability of false alarm during one day amounts to order of 10-3 which corresponds to one false operation during 1000 days of operation. EFFECT: reduced pulse power of transmitter and provision of start-stop operation of system. 2 dwg
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