Selex RAT-31DL
| Country of origin | Italy |
|---|---|
| Type | 3D Solid-state Long Range Surveillance Active Phased Array Radar |
| Frequency | L band |
| RPM | 6 rpm |
| Range | 470 km detection range and 500 km instrumented range |
| Altitude | 30 km |
| Azimuth | 0–360° |
| Elevation | 0°-20° |
The Selex RAT-31DL is a long-range air surveillance radar manufactured by Leonardo (previously Selex ES, SELEX Sistemi Integrati and later Finmeccanica). The acronym RAT stands for Radar Avvistamento Terrestre, an Italian term for such "ground-based reconnaissance radar".
The RAT-31DL is an L-band solid-state active phased array 3D radar with an effective range of over 500 km. It is derivative of widely used RAT-31 SL.
The RAT 31DL is a solid-state active phased array radar with monopulse antenna with 42 rows of 42 Tx/Rx modules, each with 2 kW output power. The 360 ° search is performed with four independent beams in the L band at 6 rpm, the vertical pivoting of the beams is done by means of electronic phase shift of the 42 rows feeding the antenna.
The mobile RAT 31 DL / M radar variant is derived from the stationary FADR version. The RAT 31 DL / M consists of a fold-able antenna and an equipment shelter, which are housed in air transportable 20-foot ISO containers. This configuration allows rapid deployment with high mobility and allows deployment in an unprepared position.
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