DEVICE FOR SPECTRUM ANALYZER Russian patent published in 1994 - IPC

FIELD: radio instruments. SUBSTANCE: device has input unit 1, calibrator 2, swept circuit 3, sweep frequency generator 4, mixer 5, intermediate frequency amplifier 6, first squarer detector 7, frequency detector 8, differentiating unit 9, gate 10, matching unit 11, direct current amplifier 12, first switch 13, monitoring device (CRT) 14, multiplier 15, first band-pass filter 16, second squarer detector 17, second switch 18, second band-pass filter 19, phase inverter 20, adder 21. EFFECT: increased functional capabilities. 5 dwg