FIELD: railway automatics. SUBSTANCE: device has ac generator 1, three limiters 2,7 and 12, two matching elements 3 and 5, one rectifier 6 two pulse shapers 8 and 11, one inverter 9, one OR gate 10, one pulse counter 13, one register 14, one signal level and phase locking circuit 15, one analog-to-digital converter 16, one low-frequency filter 17 and one pulse generator 18. Signal level and phase locking circuit is made in the form of storage unit. EFFECT: enhanced reliability of operation. 2 dwg
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