The DD-R33 medium-range X-band phased array radar 1, Product Overview The DD - R33 medium - range X - band phased array radar is designed with a state - of - the - art configuration, featuring a fully solid - state, fully coherent, and pulse Doppler system. This advanced design is the key that empowers the radar to perform all - weather detection and early warning specifically for "low, small, slow" targets. These types of targets are often more difficult to detect due to