Luis Velez, left, and John Radzikowski set up a AN/TPQ-48 Lightweight Counter Mortar Radar (LCMR) for testing at Tobyhanna Army Depot, PA. There are three versions of the radar in use today: V1, V2 and V3. $2.5 million Live-Fire Test Simulator is used to test the LCMR's. This chamber accurately simulates mortar and artillery fire in an electronic environment, eliminating the need to perform actual live-fire testing. US Army photo.