 RAT-31DL in the Czech Republic | |
| Country of origin | Italy |
|---|---|
| Type | 3D Solid-state Long Range Surveillance Active Phased Array Radar[1] |
| Frequency | L band |
| RPM | 6 rpm[1] |
| Range | 470 km detection range[2] and 500 km instrumented range[1][2] |
| Altitude | 30 km[2] |
| Azimuth | 0–360°[1] |
| 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.[1] 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 of which 24 boosted, 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.