Long-range air-surveillance radar
RAT 31DL is a Leonardo L-band long-range radar for national and alliance air-defence networks.
The RAT 31DL is a fixed long-range air-surveillance radar intended to contribute to a recognised air picture over large areas. It is used to detect, track, and classify aircraft and other airborne targets so air-defence commanders can decide whether to monitor, intercept, or engage. Its importance is strategic because air defence begins with persistent surveillance.

