Yeah, but it can detect and track a guy smoking in the woods from 40 miles away.
And THAT is its problem.
http://www.freerepublic.com/focus/f-chat/3501058/posts
Simple, cheap, eye-aimed Anti-air cannon and machine guns took out most of the US fighters and bombers in Vietnam.
And the enemy had NO shoulder-fired surface-air missiles experience until the Israelis began losing their jets in the Yom Kipper war..