DEVICE FOR DETERMINING FREQUENCY, TYPE OF MODULATION AND MANIPULATION OF RECEIVED SIGNALS Russian patent published in 2016 - IPC G01R23/00 

FIELD: radio engineering, communication.

SUBSTANCE: proposed device relates to radio electronics and can be used to determine carrier frequency and type of modulation of signals received in the specified frequency range. The device includes receiving antenna 1, input circuit 2, searching unit 3, heterodyne 5, mixer 6, amplifier 7 of intermediate frequency, amplitude detector 8, 13, 28, 29 and 33, video amplifier 9, device 10 for shaping frequency sweep, electron-beam tube (EBT) 11, keys 12, 24, 37, 40, 41 and 42, high-pass filters 14, 27 and 32, low-pass filters 15, 19 and 26, quad units 16 and 20, voltage dividers 17 and 22, frequency detector 18, comparison units 23, 30, 34, 39 and 49, phase detector 25, integrator 35, threshold unit 36, frequency meter 38, memory unit 43, analogue-to-number converters 44, 47 and 50, clipping unit 46, spectrum analysers 21, 45 and 48, phase inverters 51 and 52, and coincidence elements 53, 54, 55 and 56.

EFFECT: enlarging functional capabilities of the device by recognition of signals with amplitude and frequency manipulation.

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