| Country | Italy |
|---|---|
| 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.
RAT-31DL/M
The mobile RAT 31 DL / M radar[1] 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.
See also
- Selex RAN-40L Naval Long Range Surveillance radar.
Operators
- Austrian Air Force: 3 RAT-31 DL, 1 RAT-31 DL/M [3]
- Bangladesh Air Force: 1 system.[4][5]
- Royal Danish Air Force[citation needed]
References
- ^ "Home"
- ^ "Ancile"
- ^ "Mobiles Radargerät". Austrian Armed Forces. Retrieved 29 October 2025.
- ^ "Trade-Register-1971-2018.rft". Stockholm International Peace Research Institute. Archived from the original on 2017-12-29. Retrieved 2019-04-21.
- ^ "সম্পূর্ণ কম্পিউটারাইজড বিমান বাহিনীর নতুন রাডার" (in Bengali). SOMOY TV (Youtube). 15 February 2021. Retrieved 21 June 2025.
- ^ "Avionews.com - SELEX Sistemi Integrati at DSA "Defence Service Asia 2010"". avionews.com. 17 November 2023.
- ^ "Finmeccanica cements position as NATO's air defence partner with Polish radar delivery - DETAIL - Leonardo-Finmeccanica Group". Leonardo-Finmeccanica Group
- ^ "Final Systems Acceptance for Czech and Hungarian Radars". NATO Communications and Information Agency
- ^ "Government - Ministry of Defence - News". Government of Hungary - Ministry of Defence
- ^ "Selex ES is upgrading RAT 31 DL radar in Turkey - UPI.com". UPI
- ^ "Kohanudnas Bakal Diperkuat Radar Baru Leonardo RAT-31 DL/M, Ini Spesifikasinya!". 20 November 2019.
- ^ "Kontrak Pengadaan Radar Pertahanan Medium Range Ditandatangani di Thailand – WARTAKINI"
- ^ nst (2023-02-07). "Mengenal Leonardo RAT 31 DL/M, Radar Baru TNI Pelacak Rudal Nuklir - Indonesia Defense Magz %" (in Indonesian). Indonesia Defense Magz. Retrieved 2023-02-08.
- ^ "Leonardo to provide RAT 31 DL/M radar system to Indonesian Air Force". Janes.com. Retrieved 2023-02-08.
- ^ "x.com". X (formerly Twitter)