The Nation

The Air Force and Navy plan to install over-the-horizon radar systems at key locations in Alaska to watch for Soviet aircraft that might not be spotted as quickly by traditional radar. The Air Force will spend $450 million to build radar transmitting and receiving stations in 1988 on two 1,500-acre sites still to be selected, Capt. Robert Morris, spokesman for the Alaska Air Command at Elmendorf Air Force Base in Anchorage, said. Navy officials said this week that construction will start this spring on a $24.5-million system on Amchitka Island. The over-the-horizon system, Morris said, bounces signals off the ionosphere and back down to earth--beyond the horizon, thus allowing the radar to see things over the horizon.

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