This radar site is located atop the Kolomannsberg (1,114 m) on the border between Salzburg and Upper Austria north of Thalgau in a region known as the Flachgau. The site is active since January 1968, and provides 24/7 air surveillance since August 1968. Initially a French CSF (now Thales Group) RV376 and a British Marconi (now BAE Systems) S244 height finder were used at the site but were replaced by an Italian Selenia (now Alenia) RAT-31S 3D-radar in 1983. The system was further enhanced with the installation of a Selenia (now Alenia) RAT-31DL 3-D radar in 2003.