Austrian air defense

It integrates civilian and military radar systems under the authority of the Austrian Air Force.From 1964 to 1970 the first, fixed radar-station Kolomannsberg near Salzburg was developed.

It included the purchase of an Italian Selenia (nowadays Alenia) RAT-31S & MRCS-403 radar system, planning and building of the Einsatzzentrale/Basisraum (government crisis bunker), the building of the fixed radar stations Speikkogel and Steinmandl and the airtraffic control center Schnirchgasse Wien (Vienna).It is named after a traditional Austrian women's cap.

Military requirements included determining the altitude of aircraft sightings as well as seeing beyond Austria's borders was absolutely necessary.

Austrian military staff decided to buy the Italian Selenia RAT-31S / MRCS-403[1] instead of the American Westinghouse AN/TPS-43E system.

The Einsatzzentrale/Basisraum (EZ/B) is a command center and government crisis bunker, situated 300m inside a mountain near the village of Heukareck, in the vicinity of St. Johann and Salzburg.