FIELD: digital information transmission over radio channels; radiotelemetry; systems for data exchange among computers. SUBSTANCE: digital signal arriving at sending end of device is passed through converter and differentiated, filtered off, then passed through voltage divider to frequency modulator. On receiving end of device, signal is reconverted which makes it possible to transmit information at any speed specified by State Standard. EFFECT: simplified design of device, enlarged speed range for information transmission. 4 dwg
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