DEVICE FOR NOTIFYING FRESHET OR MUD FLOWS Russian patent published in 1995 - IPC

FIELD: warning equipment. SUBSTANCE: device has radio transmitter, multivibrator, the first to the third level detectors, the first to the third sensitive elements, the first to the third relays, the first to the fourth contacts, the fourth relay, resistor, the first to the third power supplies, modulating code generator, master oscillator, telegraph key, phase manipulator, power amplifier, transmitting aerial, radio receiver, receiving aerial, mixer, search unit, heterodyne, intermediate frequency amplifier, detector, the first and the second spectrum widths meters, frequency doubler, comparison unit, threshold unit, the first key, delay line, annunciator, frequency by two divider, narrow band filter, phase detector, registration unit, the second key and frequency meter. EFFECT: improved reliability. 2 dwg