FIELD: electronic engineering. SUBSTANCE: second oscillator is mounted on same integrated-circuit chip as integrated voltage-controlled semiconductor oscillator and is not controlled by external voltage. Additional counterphase control signal is discriminated from second- oscillator frequency and passed to voltage-controlled oscillator for temperature or, respectively, parametric action on its frequency; to this end, output of additional oscillator can be connected through circuit set up of monostable multivibrator and low-frequency filter placed next to the former to additional control input of voltage-controlled oscillator. EFFECT: improved circuit arrangement for reliable correction of frequency deviation. 4 cl, 6 dwg
