OSCILLOGRAPHIC SPECTRUM ANALYZER Russian patent published in 1994 - IPC

FIELD: radio-measurement technology. SUBSTANCE: analyzer has sweep generator, heterodyne, mixer, intermediate frequency amplifier, detector, delay line, four cathode-ray tubes, switch, frequency-by-eight multipliers, frequency-by-eight dividers, band-pass filters, controlled delay unit, multiplier, narrow band filter, phase detector, control unit, frequency detectors, differentiating units, amplitude detector, saw-tooth voltage generator, rectifier, reference voltage generator, phase shifter for 90 deg, amplifiers, frequency-by-two multiplier, frequency-by-four multiplier, spectrum width meters, comparison units, threshold members, OR gate, amplitude limiter and sync detector. EFFECT: improved precision of measurement. 5 dwg