FIELD: radio engineering. SUBSTANCE: receiver has main channel built up of series-connected mixer, intermediate-frequency amplifier, correlator unit, and information acceptor, as well as local oscillator, signal copy generator, and synchronizer. Introduced in addition are two more channels each having mixer, intermediate-frequency amplifier, and local oscillator, as well as Doppler-effect frequency and frequency sign separating circuit. EFFECT: provision for adjusting local oscillator frequency by means of AFC unit thereby automatically compensating for increase or decrease in carrier frequency of received signal due to Doppler effect. 2 dwg
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