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To navigate in electronic-warfare (EW) environments, armed forces need reliable and resilient GNSS/GPS positioning with anti-jam technology. 

A new anti-jam technology for assured positioning, navigation and timing (A-PNT) has been tested by the British Army’s Light Dragoons — a light cavalry regiment. The force was 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, 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.

GAJT successfully protected the positioning system despite experiencing interference.

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 with customized offerings for land, marine and air applications, according to gpsworld.com.