The recent Air Force Association's Air & Space Conference near Washington, D.C., was an incredible display of some of the finest defense technologies in the world. Lockheed Martin (NYSE:LMT) showed off several products, including a giant 3-D long-range radar system, which will be used by the Air Force for mobile, long-range surveillance and ballistic missile defense.

The Motley Fool's roving reporter Rex Moore was at the conference, and talked with Lockheed's director of ground-based surveillance radar, Mark Mekker. In this segment, Mekker talks about the radar's range, and what 3-D means for this technology.