FIELD: TV equipment, in particular, tracing equipment for detection of small-size objects. SUBSTANCE: device has analog-to-digital converter 1, comparison unit 2, control unit 3, univibrator 4, dividers 5, 6, 7 and 8, divider 9, code converter 10, registers 11, 12 and 13, code converter 14. Code converters 10 and 14 together with dividers 5 and 9 provides independence of discriminator from signal amplitude. Invention discloses characteristics of types of conversion, achieved by code converters, and description of control unit. EFFECT: decreased error in measurement of coordinate error in noise conditions. 2 cl, 7 dwg
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