FIELD: radio engineering. SUBSTANCE: increased precision of formation is achieved by stabilization of moment of switching over of frequencies of frequency-shifted signal by insertion of five multipliers 17, 18, 21, 22, 36, two phase shifters 19, 20, three delay units 23, 24, 31, integrator 34, power supply unit 25, correction input unit 29, frequency divider 30, reference signal former 32, instruction former 39. EFFECT: increased precision of formation of frequency-shifter signals. 7 dwg
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