AJ979XF+ MAR Anti-Jam Multi-Constellation Full-Band Antenna
The AJ979XF+ MAR Anti-Jam antenna is designed to mitigate interference and jamming signals broadcast from near-ground-based transmitters.
Key Features:
- Great axial ratio (1.0 dB typ.)
- Low LNA noise (2.5 dB typ.)
- High-rejection XF+ Filtering
- High-gain LNA (40 dB typ.)
- Wide voltage input range (2.5 to 16 VDC)
- ESD circuit protection (15 kV)
- IP67 weather-proof housing
- RoHS and REACH compliant
- 20 dB attenuation at 0-15° Elevation
Description
Product Overview
The Calian AJ979XF+ MAR is a high-precision anti-jam full band GNSS antenna engineered for reliable positioning, navigation and timing in the most challenging RF environments. Designed for marine, transport and mission-critical deployments, it supports full band GNSS coverage across L1, L2, L5 and L6 frequencies, delivering enhanced accuracy and signal continuity. By combining low elevation signal suppression with advanced XF+ filtering, the antenna maintains stable performance even in the presence of strong interference from ground-based transmitters, satellite communications and nearby RF systems.
Key Features
Full Band GNSS Coverage
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Supports GPS, GLONASS, Galileo, BeiDou, NavIC and QZSS across L1, L2, L5 and L6 bands
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Full band operation improves positioning accuracy and signal redundancy
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Compatible with SBAS and L band correction services for enhanced precision
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Designed for high-accuracy positioning and timing applications
Anti-Jam and Interference Resilience
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Low elevation angle nulling reduces interference from near-ground sources
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Provides wideband suppression of signals at low angles to protect GNSS reception
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Enables operation closer to jamming sources compared to standard antennas
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Maintains reliable satellite tracking in high-interference environments
XF+ Filtering and Signal Protection
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Advanced XF+ filtering delivers strong rejection of out-of-band interference
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Wideband filtering helps protect against LTE, satellite uplink and marine RF signals
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Dual-channel architecture separates signal paths to maintain operation if one band is affected
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Maintains clean signal reception across multiple frequency bands
Signal Quality and Accuracy
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Circular polarisation supports improved multipath rejection
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High-gain design with a low-noise amplifier for strong signal acquisition
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Stable phase centre characteristics for precision positioning
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High signal-to-noise ratio for reliable navigation and timing performance
Rugged Marine and Industrial Design
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IP67-rated enclosure for protection against water and dust
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Designed for marine, offshore and harsh outdoor environments
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Resistant to vibration and shock for mobile and vessel-based installations
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Wide operating temperature range for extreme conditions
Installation and Integration
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Secure mounting design suitable for vehicles, vessels and infrastructure
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Compatible with GNSS receivers and positioning systems
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Supports long-term deployment in fixed and mobile installations
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Flexible integration into marine, transport and industrial platforms
Applications and Use Cases
The AJ979XF+ MAR is suitable for:
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Marine navigation and offshore positioning
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Mission-critical positioning and timing systems
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Law enforcement and public safety
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Fleet tracking and transport systems
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Surveying and geospatial applications
Dimensions/Drawings
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More Information
| Brand | Calian Group | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Specifications |
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Ordering Information
Part Number 33-AJ979XF+-MAR-xx
where xx = connector type, 01 = TNC (female), 14 = type-N (female)
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