FIELD: radio engineering. SUBSTANCE: method involves modulation of second sub-carrier of complex stereo signal by means of signal of additional information and addition of resulted modulated signal to complex stereo signal. Odd harmonic frequency of half sub-carrier frequency is chosen as second sub-carrier. This results in decreased relative interference in channels of main and additional information down to level required by current standards. EFFECT: increased quality and effective distance of reception. 5 cl, 1 dwg
