Multi-function surveillance and target acquisition radar

Step into the next dimension

TRS-4D is HENSOLDT Sensors' latest member of the C-Band (NATO G-Band) naval radar family. It is available with a single face rotating antenna and also as a four fixed-panel configuration.

Based on the most advanced Gallium Nitride ActiveElectronically Scanned Array (AESA) sensor technology with multiple digitally formed beams, the new generation TRS-4D opens a new dimension for maritime missions.

It is fully flexible, using an innovative and unique combination of electronic scanning technology and mechanical rotation.

This allows for unprecedented surveillance and unmatched threat detection and tracking performance to extend mission success and platform survivability. TRS-4D supports the countering of conventional and asymmetric threats.


Performance Data

Maximum instrumented range

up to 250 km

Minimum range < 100 m
Elevation coverage-2° ... 70°
Azimuth coverage
  • Rotation 
  • Single panel
-50° ..+50° (reI. to bore sight)
Target detection capabilityRCS 0.01 m2
Tracking 3D capacity> 1,000 targets
Gun fire support4 windows
Track range performance
  • Small surface target 
  • Maritime patrol aircraft 
  • Supersonic sea skimmers  
> 14 km
> 100 km
limited by horizon
Track accuracy* 
  • Elevation 
  • Bearing 
  • Range
< 8.0 mrad / 0.5°
< 3.3 mrad / 0.2°
< 15 m
Track update rate< 1 s
*Performance figures for Cued Search / Cued Track on request only


Active Electronically Scanned Array (AESA)


Electronically stabilised


Integrated IFF antenna (three channels)
Mechanical rotation rate30 / 15 rpm
Weight< 900 kg
Very low sidelobes


C-Band (NATO G-Band)


Solid-state Tx modules in Gallium Nitride (GaN) technology


Graceful degradation
Adaptable transmitter power


Digital beam forming


Pulse Doppler processing in all beams


Dedicated high range resolution surface channel process
Sophisticated classification algorithms
Areas of interest (cued search)
High-priority target tracking (cued track)

Product impressions