In the maritime industry, the risks posed by interference, jamming, and spoofing are on the rise.Thes disruptions, whether purposeful or accidental, can considerably impact the availability of Positioning, Navigation, and Timing (PNT) services, perhaps leading to complete operational failure. Jammers generate overwhelming radio frequency (RF) noise that can overpower the weak GPS signals, causing saturation in the electronics of GPS receivers.To ensure reliable positioning, navigation, and timing (APNT) for critical operations, safeguarding GPS and GNSS signals is essential.
The GPS Anti-Jam Technology (GAJT) offers robust protection against RF interference and jamming threats. The GAJT-710MS stands out as a premier APNT solution, featuring advanced jammer direction-finding capabilities, superior performance, and a silent mode to evade detection.
Key Features
- Cost-effective protection for GNSS position, velocity, and timing
- 40 dB interference suppression
- Compact single enclosure design
- Simultaneous protection for GPS L1/L2, QZSS L1/L2, SBAS L1, and Galileo E1
- Supports M-Code on GPS L1 and L2
- Adaptive digital nulling technology
- jammer direction-finding capabilities
- Silent operation mode
- Durable marine-hardened enclosure
Advantages
- Commercial off-the-shelf (COTS) solution
- Affordable anti-jam protection for maritime vessels
- simple integration, perfect for retrofitting
- Effective anti-jam performance in complex multi-jammer environments
- Compatible wiht both legacy and modern GNSS receivers, including M-Code
- Enhances situational awareness
- Minimized thermal signature
Compact and Cost-Effective
The GAJT-710MS by NovAtel integrates a Controlled Reception Pattern Antenna (CRPA) with null-forming electronics within a marine-hardened casing, making it suitable for a variety of marine vessels, from small patrol boats to large cargo ships.
Innovative Patented Technology
Interference reduction is accomplished through proprietary digital beamforming algorithms that create dynamic nulls, effectively shielding against a broad spectrum of interference sources.
Operational Mechanism
The GAJT system counters GNSS interference by generating nulls in the antenna gain pattern directed at jammers,providing substantial anti-jam protection even in rapidly changing multi-jammer situations.The output from the GAJT-710MS is a standard RF feed, compatible with legacy GPS receivers.
Future-Ready Design
The GAJT system safeguards L1 and L2 GPS signals, and its wide bandwidth ensures compatibility with future M-Code GPS systems.
