The latest TRML-4D comes with non-retractable, rotating base active electronically scanned array (AESA) solid-state antenna.

TRML-2D was designed as an autonomous mobile command system for air defense with an integrated search radar.

It can detect, identify and track aircraft at low and medium altitude, designate targets for the connected launchers and send commands to the battle management network.

[2] The crew shelter with integrated retractable mast is loaded onto a truck (Bundeswehr designation "Lkw 15 t mil gl BR"), but can also be dismantled to operate as a standalone trailer.

This enables simultaneous action against fast, low-flying aircraft and anti-aircraft missiles as well as against extremely slow-flying targets such as hovering helicopters.

TRML can feed the detected tracks into air defense combat management systems (HFLaAFüSyS 9, HEROS 2) to create more detailed picture of the airspace.

[11] The radar unit includes a completely redesigned AESA antenna with solid-state GaN elements, mounted on a non-retractable continuously rotating base.

TRML-4D combines digital beamforming with pulse-Doppler radar to detect difficult-to-locate airborne targets such as hovering helicopters or low-flying cruise missiles.

[2] The radar unit includes an onboard power generator and can be carried by any truck that has standard 20 ft (6.1 m) ISO container fittings.