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Eurosatory 2018: Hensoldt begins serial production of new AESA radar

13th June 2018 - 17:00 GMT | by Alice Budge in Paris


Hensoldt has begun serial production of its new software-defined AESA land-based air defence radar, the TRML-4D after receiving an initial order for ten units from a non-NATO nation.

First deliveries of the Hensoldt’s latest radar system, based on the company’s existing Naval TRS-4D radar, already in use with the US and German navies, will be made at the end of 2019.

Qualification trials of the system have already been completed and live fire testing with the first customer will be conducted next year.

A total of 50 radar systems will be produced over the next two to three years.

Speaking to Shepard at Eurosatory 2018, a company spokesperson explained that additional trials have been planned with other potential customers as many nations now face more complex air threats in challenging environments.

‘Production of the new radar is a consequence of the change in the threat environment with more agile and fast moving flying threats which are difficult to detect against clutter,’ he said.

‘We have had a lot of interest as customers are looking for a remedy for defeating fast and agile threats in very dense and cluttered environments.’

The C-band (NATO G-band) radar features advanced signal processing technology which quickly establishes threats and is combined with active detection, tracking and classification of air targets.

In addition, utilising AESA radar technology the TRML-4D is capable of acquiring targets after one antenna rotation, further improving response times and hit probability.

‘The main capability parameters are defined by software, which enables us to provide specific capabilities to customers,’ the spokesperson said.

‘By using Gallium Nitride (GaN) solid state transmitters the system offers additional power and versatility, while delivering a C-band system offers high radar accuracy and high "PKill".’

In order to transfer the radar from a naval system to a land-based capability the size of the antenna was doubled and additional land-based signal processers were integrated.

With a maximum range of 250km and an altitude of 30km, the radar’s tracked classification capabilities enables the identification approximately 1,500 fixed and rotary wing, missile and ballistic targets.

The system features an integrated secondary radar to provide friend or foe identification (IFF). The 2D monopulse radar adapts automatically to the system’s antenna rotation speed with 360° coverage at a range of 140km.


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