It is a multi mode pulse-Doppler Radar and the first NATO radar with three channels, instead of two, the third channel is used for self-protection roles. It was developed as the successor to the Blue Vixen radar, which was developed for the Sea Harrier FA.Mk.2. It operates in I/J Band (8 to 12 GHz). The radar was primarily designed for air to air roles but it also has air to surface features. It is able to track a 1 m² target at a range of 185 km and a normal passenger plane at a range of 370 km.