FIELD: railway transport; track maintenance and repair. SUBSTANCE: warning device is designed for warning train driver of carried out track repair work and warning repair of approaching train without signal tenders. Device has converter of acoustic vibrations appearing in rails, signaling unit, audio frequency generator, striking mechanism for striking against rail, and unit for analyzing the signal with respect to spectrum or change of amplitude. Input of signal analyzing unit is connected to output of amplifier, and its output is connected to signaling unit and radio transmitter. Striking mechanism is coupled with generator. Device is furnished with radiophone coupled with said radio transmitter and transmit-receive antenna of locomotive. EFFECT: enhanced reliability, enlarged operating capabilities. 1 dwg
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