British Army Light Dragoons demo anti-jam technology


NATO forces are deployed in some of the world’s most aggressive electronic-warfare (EW) environments. Intentional interference comes both from “personal protection” devices and large, high-powered EW assets.

To navigate despite EW, armed forces need reliable and resilient GNSS/GPS positioning with anti-jam technology. The Light Dragoons — a light cavalry regiment of the British Army — are in a perfect position to test anti-jam technology for assured positioning, navigation and timing (A-PNT).

The Light Dragoons were deployed as the United Kingdom’s Light Cavalry contribution to “Battlegroup Poland,” part of NATO’s enhanced Forward Presence. On the front line, the Light Cavalry engage in reconnaissance, mark targets for indirect fires, and prepare routes for the rest of the force. In this role, being prepared for EW is essential.

To test A-PNT technologies, the Light Cavalry took part in Project Thundercat, a light cavalry capability investigation run by the Armoured Trials and Development Unit (ATDU). A Hexagon | NovAtel GPS anti-jam technology (GAJT) antenna, the GAJT-410ML, was fitted to a Jackal high-mobility transporter and integrated with its onboard positioning system.

GAJT successfully defeats jamming on GPS L1 and L2 and Galileo E1 frequencies. When interference is detected, GAJT recognizes the unwanted interference and reduces reception in that direction. The result is a more resilient GNSS solution, protected measurements and A-PNT.

The Light Dragoons found that GAJT successfully protected their positioning system despite experiencing interference. The GAJT-410ML antenna was easy to install in a simple plug-in-and-go process.

In upcoming experiments, the British Army will use NovAtel technology to gain electronic situational-awareness data to characterize the radio frequency environment.

GAJT systems are offered by NovAtel with customized offerings for land, marine and air applications.

The Light Dragoons test NovAtel GAJT anti-jamming antennas in Project Thundercat. (Photo: Photo: British Army}





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