Hexagon | NovAtel Sets a New Benchmark for Assured GNSS in Airborne Missions

As modern conflicts evolve, so too does the battle for the electromagnetic spectrum. Satellite-based navigation—long considered a reliable backbone for positioning, navigation, and timing (PNT)—is increasingly under threat from sophisticated jamming technologies that are becoming both more powerful and more accessible.

In response to this rapidly changing operational landscape, Hexagon | NovAtel has introduced a new solution designed to ensure mission resilience in contested environments. The Calgary-based technology leader has launched the GAJT-AE3, the latest addition to its trusted GNSS Anti-jam Antenna Technology (GAJT) portfolio, bringing advanced protection to airborne platforms that rely on uninterrupted satellite navigation.

The announcement marks a significant milestone in the evolution of assured PNT capabilities, particularly as defence and aerospace operators confront an increasingly complex spectrum environment.

A Growing Challenge in the GNSS Domain

Global Navigation Satellite Systems (GNSS) underpin everything from aircraft navigation and autonomous systems to precision weapons and advanced ISR operations. Yet the growing proliferation of electronic warfare tools—particularly low-cost jammers capable of targeting multiple frequencies—has raised urgent concerns across the defence and aerospace sectors.

Modern jamming systems are no longer limited to disrupting a single satellite frequency. Instead, they can now attack multiple bands simultaneously, threatening the reliability of navigation signals that airborne systems depend on.

This emerging threat environment has driven demand for technologies capable of maintaining reliable satellite connectivity even under heavy interference.

Introducing Full Multi-Constellation, Multi-Frequency Protection

The GAJT-AE3 was developed specifically to address these challenges. According to Hexagon | NovAtel, the new system is the first anti-jam product capable of protecting all major GNSS constellations with full multi-constellation, multi-frequency (MCMF) coverage.

This capability represents a substantial advancement in GNSS signal protection. By supporting multiple satellite systems and frequencies simultaneously, the GAJT-AE3 significantly increases resilience against increasingly sophisticated electronic attacks.

Equally important, the system delivers this performance in a compact form factor designed for airborne environments where space, weight, and power constraints are critical considerations.

Designed for the Realities of Modern Electronic Warfare

At the core of the GAJT-AE3 is advanced antenna electronics that actively suppress interference before it reaches the navigation receiver. The system works by dynamically creating up to seven signal nulls per band, targeting the direction of jamming sources.

This capability allows the system to maintain signal integrity even in dynamic multi-jammer scenarios, a growing concern as electronic warfare systems become more agile and widely deployed.

The result is a protected radio frequency signal that remains suitable for both modern and legacy GNSS receivers, ensuring compatibility across a wide range of operational systems.

Flexible Integration Across Platforms

Operational flexibility is another defining feature of the GAJT-AE3. The system protects and supports all GNSS frequencies, including L-Band corrections and Iridium PNT, enabling it to function across a broad spectrum of navigation architectures.

Designed with integration in mind, the unit is compact and easy to install across multiple airborne platforms—from uncrewed aerial vehicles (UAVs) to more complex weapon systems. The system can also be paired with antennas from the Hexagon | Antcom portfolio, including customer-specified custom options, providing operators with additional flexibility to tailor the solution to specific mission requirements.

Expanding a Proven Anti-Jam Portfolio

For Hexagon | NovAtel, the GAJT-AE3 represents more than just another product launch—it reflects the company’s continued investment in technologies designed to protect navigation systems in contested environments.

“This is a revolutionary expansion in our battle-proven anti-jam solutions designed specifically for space-constrained platforms,” stated 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.”

Strengthening Mission Assurance in the Air Domain

As airborne operations become more networked and data-driven, assured PNT remains foundational to mission success. Navigation signals support everything from aircraft guidance and sensor alignment to targeting and synchronization across multi-domain operations.

In contested theatres where electronic warfare is increasingly prevalent, technologies like the GAJT-AE3 provide a critical layer of resilience. By delivering full multi-constellation, multi-frequency GNSS protection in a compact and integratable form factor, Hexagon | NovAtel’s latest innovation underscores a simple but essential principle of modern warfare: maintaining the signal is often the difference between mission success and failure.



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