39th Radio-Technical Regiment
Identification
Open sources strongly identify this record as the 39th Radio-Technical Regiment, military unit 21527, on Sakhalin. A long-running PVO ORBAT reference places the regiment HQ at Khomutovo from 1998 onward, and South Sakhalin municipal records list v/ch 21527 at 3rd Naberezhnaya Street in Khomutovo, Yuzhno-Sakhalinsk; that is consistent with the submitted HQ placemark near 46.8849N, 142.7544E. ([ww2.dk](https://www.ww2.dk/new/pvo/radar/39rtp.htm))
Footprint
The regiment is best understood as a distributed Sakhalin radar network rather than a single compound. Several submitted placemarks closely match historical regiment sites at Makarov, Kostromskoye, Mys Krilon, and Mys Svobodnyy, while official regional utility-protection lists in 2021-2022 show active or recent 21527 detachments at Smirnykh-6, Makarovo-3, Nogliki-39, and Okha-1. ([ww2.dk](https://www.ww2.dk/new/pvo/radar/39rtp.htm))
Infrastructure
Official regional records enumerate substantial fixed infrastructure for the regiment: at Khomutovo they list HQ buildings, checkpoints, a command-post barracks with boiler support, a dining facility, and an artesian well; at Smirnykh, Makarov, Nogliki, and Okha they list barracks, control/command buildings, checkpoints, water support, and in Makarov a diesel power station. This supports assessment of multiple fixed detachments with dedicated life-support utilities across the island. ([base.garant.ru](https://base.garant.ru/405250155/?utm_source=openai))
Radar assets
The same 2021-2022 records name radar and related systems at outstations, including 55Ж6/55Ж6УМ, 22Ж6, 12А6, P-37 and PRV-13 at Smirnykh; 19Ж6 and additional radar/support systems at Makarov and Okha; and 5Н84АП, 19Ж6, 55Ж6УМ and 98Щ6М at Nogliki. Open sources reviewed here do not publicly confirm the regiment’s full current order of battle, but the documented equipment mix is consistent with an island-wide air-surveillance role. ([base.garant.ru](https://base.garant.ru/405250155/?utm_source=openai))
History
Open-source PVO lineage data traces the regiment to 1958, formed from the 39th VNOS Regiment. The same source shows HQ moves from Dolinsk to Sokol in 1976 and to Khomutovo in 1998, which explains why older Sakhalin references may point to Dolinsk or Sokol while newer administrative records place v/ch 21527 at Khomutovo. ([ww2.dk](https://www.ww2.dk/new/pvo/radar/39rtp.htm))