FIELD: radiolocation, railway transport for determination of position of train, point of repair of railway bed or power network. SUBSTANCE: radar counter of supports has antenna and transceiver connected in series in which transceiver is manufactures in the form of SHF amplifier of reflective type based on Gunn-effect diode. Low-frequency filter tuned to frequency 
is connected to anode circuit of diode. Δt3 in formula is time delay of electromagnetic wave at some distance from antenna to support. Threshold detector and logic device of counting and indication are connected in series to output of low-frequency filter. EFFECT: simplified design of equipment, automatization of counting and decrease of harmful effects of radiation. 4 dwg
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