The Operations site (upper base) was constructed extremely close to a cliff which dropped some 1,800 feet. Available space was at a premium and all of the permanent buildings had to be constructed. Being in the far north required the capabilities to operate in more than extreme cold weather conditions. Because of its open location and the proximity to the water, the station was subject to severe winds, excessive snow accumulations and extremely low temperatures. It was necessary to include structures such as barracks, shops, warehouses, dining halls, recreational areas as well as the operations centre. There was also a necessity to construct inter-connections between all of the buildings.
Radar operators in the AC&W squadron tracked the movements of aircraft sighted and passed speed, height and direction information to "Direction Centres" (DC's) and fighter interceptor squadrons. Fighter aircraft were airborne in minutes after an alarm was given, and closed in on unidentified planes by means of radar detection equipment in the fighters. Another of their functions was furnishing navigational aid to friendly aircraft operating in the area. Their detection of "May-Day" calls contributed to quick search and rescue efforts.
-- Ren L'Ecuyer