To pick up moving targets, the Doppler radar looks at the Doppler frequency shift of the returned signal. It can look from a long range, which the military refers to as a high standoff capability. The antenna can be tilted to either side of the aircraft for a 120-degree field of view covering nearly 50,000 km2 (19,305 mile²) and can simultaneously track 600 targets at more than 250 km (152 miles). The GMTI modes cannot pick up objects that are too small, insufficiently dense, or stationary. Data processing allows the APY-7 to differentiate between armored vehicles (tracked tanks) and trucks, allowing targeting personnel to better select the appropriate ordnance for various targets.