GPS World

Tag: GAJT-410

  • Hexagon | NovAtel’s GAJT-AE3 offers mission resilience for airborne applications

    Hexagon | NovAtel’s GAJT-AE3 offers mission resilience for airborne applications

    With full multi-constellation, multi-frequency GNSS signal protection, the GAJT-AE3 provides assured positioning, navigation and timing (PNT)

    Hexagon | NovAtel has launched the latest addition to its battle-proven GNSS Anti-jam Antenna Technology (GAJT) lineup: GAJT-AE3. The GAJT-AE3 emerges in response to the escalating power and sophistication of jamming techniques that disrupt satellite-based navigation systems, a concern highlighted by current worldwide geopolitical conflicts.

    As jammers become more powerful and low cost, with the capability of targeting a wider range of GNSS frequencies, there is a critical need for next-generation functionality and reliability.

    To address this, the GAJT-AE3 protects all major GNSS constellations with full multi-constellation, multi-frequency coverage. This significant advancement in jamming protection — in a compact format — ensures reliable PNT in demanding airborne environments.

    “This is a revolutionary expansion in our battle-proven anti-jam solutions designed specifically for space-constrained platforms,” said Stig Pedersen, president, Aerospace & Defence Division, Hexagon. “The GAJT-AE3 offers unparalleled signal coverage and multi-jammer direction finding for superior protection and heightened situational awareness.”

    The GAJT-AE3’s antenna electronics mitigate interference by creating up to seven nulls per band in the direction of jammers, providing significant anti-jam protection even in dynamic multi-jammer scenarios. The output is a protected radio frequency signal, free from jamming and suitable for input to modern and legacy GNSS receivers.

    Protecting and supporting all GNSS frequencies, including L-band corrections and Iridium PNT, the GAJT-AE3 is an easy-to-integrate, compact unit suitable for use on a variety of platforms, from UAVs to complex weapons. It can be paired with a range of antennas from the Hexagon | Antcom portfolio, including custom options.

    Hexagon | NovAtel’s GAJT-AE3 is now commercially available.

  • NovAtel ships GPS anti-jam GAJTs worldwide

    NovAtel ships GPS anti-jam GAJTs worldwide

    NovAtel’s GPS Anti-Jam Technology (GAJT) product lines achieved a milestone of thousands of units shipped worldwide in 2020. Despite COVID-19, 2020 has proven to be one of NovAtel’s most successful years in protecting positioning, navigation and timing (PNT) from cyber electromagnetic activities (CEMA) for military and civil organizations, the company stated in a press release.

    Jamming and interference are growing threats, from a crowded RF spectrum to malicious jamming attempts. However, the GNSS market is responding with anti-jam technologies. Across the world — on land, in the air and at sea — NovAtel customers use GAJT to protect their GNSS navigation and precise timing receivers from intentional jamming and unintentional interference.

    The GAJT portfolio includes commercial off-the-shelf solutions with short order lead times for rapid deployment. The range of products can be readily integrated into new platforms or retrofitted into legacy fleets.

    Photo: Hexagon | NovAtel
    Photo: Hexagon | NovAtel

    The GAJT-710, its smaller counterpart GAJT-410 and the GAJT-AE variants are used worldwide to protect PNT against jamming and interference no matter the environment.

    Beyond defense, GAJT enables users to be proactive against cyber electromagnetic activities using situation awareness technology to indicate the presence and direction of jamming signals.

    “Jamming and interference are growing threats worldwide. GAJT protects our customers no matter where they operate,” said Steve Duncombe, executive VP of Aerospace and Defense at NovAtel. “We’re proud to achieve this milestone during a challenging 2020 and will continue delivering assured positioning in our customers’ critical applications with extremely short delivery times.”