Advanced GPS Anti-Jamming Solutions by NovAtel

NovAtel’s GPS Anti-Jam Technology (GAJT) stands as a proven solution for assured positioning, navigation, and timing (APNT), effectively shielding systems from radio frequency (RF) interference and jamming. The GAJT-710ML model is a commercial off-the-shelf (COTS) system designed for land-based applications and fixed installations.

The Rising Threat of RF Interference

As RF interference and jamming become increasingly prevalent threats too military vehicles, networks, and timing infrastructures, the need for enhanced protection and resilience is paramount. The GAJT system features jammer direction-finding capabilities, which provide users with critical situational awareness to better understand their RF habitat. Additionally, its silent mode minimizes thermal signatures, aiding in evasion from detection.

comprehensive Protection Across Multiple Signals

The GAJT-710ML excels in safeguarding systems in both benign and jamming environments, offering protection for GPS L1 and L2, Galileo E1, QZSS L1 and L2, and SBAS L1 signals. It is indeed also designed to support M-code signals, ensuring compatibility with future advancements in technology.

Seamless Integration and Retrofitting

This technology can be effortlessly integrated into new platforms or retrofitted onto existing GPS receivers and navigation systems, making it suitable for both current and legacy fleets.

Quality Manufacturing and Reliability

NovAtel employs lean manufacturing techniques and a commitment to quality, resulting in high-performance products with reduced delivery times. The company boasts an industry-leading low return rate, ensuring reliability for users.

Key Advantages of GAJT

• Commercial off-the-shelf (COTS) solution
• Cost-effective anti-jam protection for terrestrial vehicles
• Simple integration, ideal for retrofitting
• Effective in dynamic multi-jammer environments
• Compatible with both legacy and modern GNSS receivers, including M-Code
• enhances situational awareness
• Minimized thermal signature

Notable Features

• affordable GNSS position, velocity, and timing protection
• 40 dB interference suppression capability
• Compact single enclosure system
• Simultaneous protection for GPS L1/L2, QZSS L1/L2, SBAS L1, and Galileo E1
• M-Code support on GPS L1 and L2
• Adaptive digital nulling technology
• Jammer direction-finding functionality
• Silent mode feature

Compact and Cost-effective Design

The GAJT system features a 7-element controlled reception pattern antenna housed within a robust enclosure, making it suitable for a variety of land vehicles and fixed installations. The antenna intelligently adjusts its reception pattern to diminish gain in the direction of both intentional and unintentional jammers, ensuring that GNSS receiver electronics remain functional for accurate position and timing calculations.

Innovative Technology at the Forefront

Utilizing proprietary digital beamforming algorithms, GAJT effectively mitigates interference by generating dynamic nulls to protect against various interference sources, addressing both intentional and unintentional disruptions.

Operational Mechanism

GAJT combats GNSS interference by forming nulls in the antenna gain pattern directed at jammers, providing ample anti-jam protection even in complex multi-jammer scenarios. the output from the GAJT-710ML is a standard RF feed, making it compatible with both legacy and modern GPS receivers.

Future-Ready Protection

GAJT is designed to safeguard M-Code on L1 and L2 GPS signals. With its wide bandwidth, it ensures compatibility with future M-Code GPS advancements.