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AX18 GNSS anti-jamming antenna 11-channel high-performance

AX18 GNSS Anti‑Jamming CRPA System | 11‑Array 9‑Nulling High‑Performance Multi‑Jam Protection

AX18 11‑channel GNSS anti‑jamming CRPA system, 9 simultaneous independent nulls, multi-constellation support, high-performance interference suppression for heavy-duty and high-dynamic navigation platforms.

Model Specifications

Ant-jamming Parameters

Dimensions (mm) Ø252×36.5
Weight (g) 1100
Power Consumption (w) < 25 W
Antenna Array 11 Array CRPA Antenna
Simultaneous Independent Nulling 9
Simultaneous Active Bands GPS L1 L2(or L5)/GAL E1/BDS B1/GLO L1
Nominal Wideband Suppression > 95 dB J/S performance based on performance of typical GPS receivers, in the presence of 3 spatially diverse broadband jammers
Connectors 1x SMA Female, J30J 21-pin Socket
Operating Voltage 12 V DC
Operating Temperature -40 °C to +70 °C
Data Interfaces Serial
  • Export documentation support
  • Bulk orders & stable lead time
  • After-sales & spare parts support
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Description

1. General Description

AX18 Anti-Jam CRPA System supports critical high-dynamic navigation missions by providing stable, ultra-reliable jam-free GNSS signals for heavy-duty land, sea, and air platforms.

Equipped with a high-precision 11-array CRPA antenna, the system guarantees uninterrupted normal operation of GNSS receivers even in the presence of multiple simultaneous jamming sources, delivering class-leading anti-jamming performance for the most demanding operational environments.

AX18 Anti-Jam CRPA System can be deployed in various flexible heavy-duty compatible configurations, and is fully compatible with both civil and military GPS receivers for land, sea, air platforms (including large unmanned aerial systems) and fixed installations. The product integrates an embedded high-sensitivity GNSS receiver that supports all global satellite constellations and frequency bands.

2. How It Works

AX18 mitigates RF interference by creating up to 9 simultaneous targeted nulls in the antenna gain pattern toward the direction of multiple jamming sources, providing significant anti-jam protection even in extreme dynamic multi-jammer scenarios common in heavy-duty platform operations. The system outputs a protected, standard Radio Frequency (RF) signal that is completely free from jamming and interference, and is suitable for direct input to both modern and legacy GNSS receivers without additional modification.

3. Key Benefits

  • Simple assembly for easy installation or retrofit on heavy-duty platforms
  • Full compatibility with all types of external GPS receivers and vehicle/aircraft/ship navigation systems
  • Minimal integration training required for fast deployment in complex operational environments
  • Optimized light weight for heavy-duty platform weight constraints
  • Ultra-compact form factor for space-constrained heavy platform installations
  • Superior multi-source interference suppression performance in high-dynamic scenarios

4. Application Areas

  • Fixed Winged Aircraft, including large military/civil transport aircraft and fighter jets
  • Rotary Wing Aircraft, including heavy-lift helicopters and attack helicopters
  • Unmanned Autonomous Systems (UAS), including large long-endurance UAVs
  • Armored Vehicles, including main battle tanks, heavy armored personnel carriers
  • Naval Platforms, Coast Guard Platforms, including large surface ships and patrol vessels

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FAQ

What is the core difference between the AX18 and 4/8-channel anti-jamming systems like the AX14/AX04?

The AX18 features an 11-array CRPA antenna design that can create up to 9 simultaneous independent nulls, which is significantly more than the 3 nulls of 4-channel systems and 7 nulls of 8-channel systems. This allows the AX18 to suppress more simultaneous jamming sources, making it ideal for heavy-duty platforms operating in extreme multi-jammer environments, while 4/8-channel systems are optimized for lighter, space-constrained platforms.

How many simultaneous jammers can the AX18 suppress, and how many nulls can it create?

The AX18 is equipped with an 11-array CRPA antenna, which can create up to 9 simultaneous targeted nulls in the antenna gain pattern, allowing it to effectively suppress up to 9 spatially diverse broadband jammers at the same time, even in high-dynamic multi-jammer scenarios.

Which satellite constellations and frequency bands does the AX18 support?

The AX18 integrates an embedded high-sensitivity GNSS receiver that supports all major global satellite constellations, including GPS (L1/L2/L5), Galileo (E1/E5), BeiDou (B1/B2), and GLONASS (G1/G2), providing full-band multi-constellation compatibility for global navigation operations.

What types of platforms is the AX18 specifically designed for?

The AX18 is purpose-built for heavy-duty, high-dynamic platforms that require the highest level of anti-jamming protection, including large fixed-wing aircraft (military/civil transport, fighter jets), heavy-lift/attack helicopters, large long-endurance UAVs, main battle tanks, heavy armored vehicles, and large naval surface ships/coast guard patrol vessels.

How does the AX18 maintain stable anti-jamming performance in high-dynamic scenarios?

The AX18 uses an advanced 11-array CRPA design with optimized signal processing algorithms that can rapidly update the null positions in real time, even when the platform is moving at high speeds or experiencing extreme acceleration/deceleration. This ensures stable anti-jamming performance across the full range of high-dynamic operating conditions common in military and heavy-duty commercial applications.

Is the AX18 compatible with both civil and military GPS receivers?

Yes, the AX18 is fully compatible with all types of civil and military GPS receivers, as well as standard aircraft, ship, and vehicle navigation systems, and can be easily integrated into both new and existing heavy-duty platforms with minimal modification.

What are the key physical and electrical specifications of the AX18?

The AX18 has a compact size of Ø252×36.5mm, a weight of <1100g, operates on 12V DC power, has a power consumption of <30W, and an operating temperature range of -40℃ to +70℃, adapting to the harsh environmental conditions common in heavy-duty platform operations.

What type of output signal does the AX18 provide?

The AX18 outputs a protected, standard Radio Frequency (RF) signal that is completely free from jamming and interference, which is suitable for direct input to both modern and legacy GNSS receivers without the need for additional signal conditioning or hardware modifications.