MIM-104 Patriot (PAC-2 GEM-T / PAC-3 MSE)

A Patriot battery combines four core components mounted on truck trailers: the AN/MPQ-65 (or successor LTAMDS) phased-array radar, the Engagement Control Station (ECS) where the operator crew sits, up to eight M901 launchers each with four PAC-2 canisters or sixteen PAC-3 canisters, and an Antenna Mast Group (AMG) for data exchange. The radar operates in C-band (formerly AN/MPQ-53/65) or X/S-band (LTAMDS): it scans a 90° or 360° sector (LTAMDS) for air contacts, runs track-while-scan tracking, and sends mid-course corrections via uplink to missiles in flight.