FIELD: physics, radio.
SUBSTANCE: invention concerns radio technology and can be applied in receivers. Device includes intermediate frequency amplifier, splitter, multiplication unit, first band filter for low frequencies, amplifier, mixer, second band filter, first frequency detector, subtract unit, second frequency detector, second amplitude detector, and heterodyne.
EFFECT: improved efficiency of device using frequency-modulated signals on the background of wideband frequency-modulated jamming.
2 dwg
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