Ruhnu Radar Station Karinė įranga
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This radar station is situated in the western part of the island of Ruhnu, 800 metres west of the village and 600 metres from the sea. The new base is 300 metres to the north; the old base 500 metres to the south.
From 1964 the island was the site of a Soviet Air Defence Radio-technical Unit, the 28th (59th) Single Radio-technical Company of the 4th Radio-technical Brigade to be precise. The unit’s radar station was near Cape Pärsi, with barracks to the north and south of the radar. In 1989 the military unit had at their disposal a П-14Ф long range radar with a range of up to 400 km and 65,000 m in elevation, a НРЗ 73Е6 short-range radar to identify targets and a ПРВ-16 height finder to determine the altitude of the target. The unit consisted of around 10 officers with their families and 40 soldiers. The last Soviet soldier (the head of the Radio-technical Company, Senior Lieutenant Andrey Leontiev left the island on 23 December 1992. The Russian forces left behind a couple of hectares of contaminated land, a lot of unusable military equipment plus barracks and a radar station in ruins.
These ruins remain standing to this day.
A separate radio engineering company (automated unit) from the 39th RTB (Pärnu), which in turn was part of the radio engineering brigade in Tallinn