Duga-3 (western) transmitter

Duga-3 (western) transmitter

Coordinates: 51°18′19.06″N 30°03′57.35″E / 51.3052944°N 30.0659306°E / 51.3052944; 30.0659306

Duga-3 array outside Chernobyl. The array of pairs of cylindrical/conical cages on the right are the driven elements, fed at the facing points with a form of ladder line suspended from stand-off platforms at top right. A backplane reflector of small wires can just be seen left of center, most clearly at the bottom of the image.

Duga-3 ("duga" means "arc") or "Steel Yard" was a Soviet experimental over-the-horizon radar (OTH) system. It was developed for the Soviet ABM early-warning network. The system operated from 1976 to 1989.

Two stations of Duga-3 were installed: a western system around Chernobyl and an eastern system in Siberia.

The transmitter for the western Duga-3 was located a few kilometers southwest of Chernobyl (south of Minsk, northwest of Kiev). The receiver was located about 50 km northeast of Chernobyl (just west of Chernihiv, south of Gomel).


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