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AX25 GNSS anti-jamming antenna 16-channel 7+7 nulling L1/L2 multi-band

AX25 GNSS Anti‑Jamming CRPA System | 16‑Array 8+8 Dual‑Band 7+7‑Nulling Multi‑Jam Protection

AX25 16‑channel GNSS anti‑jamming CRPA system, 8+8 dual‑band array, 7+7 simultaneous independent nulls, full constellation support, superior dual‑band interference suppression for high-dynamic navigation platforms.

Model Specifications

Ant-jamming Parameters

Dimensions (mm) < 160*160*40
Weight (g) 1300
Power Consumption (w) < 30 W
Antenna Array 8+8 Array CRPA Antenna
Simultaneous Independent Nulling 7+7
Simultaneous Active Bands GPS L1 and L2 or L5/GAL E1/BDS B1/GLO G1
Nominal Wideband Suppression > 90 dB J/S Based on the performance of a typical GPS receiver, in the presence of 7 wideband jammer
Connectors SMA Female
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

AX25 Anti-Jam CRPA System supports the most critical high-dynamic navigation missions by providing ultra-reliable, jam-free GNSS signals across dual frequency bands for platforms operating in extreme multi-jammer threat environments.

Equipped with a state-of-the-art 16-array 8+8 dual-band CRPA antenna, the system guarantees uninterrupted normal operation of GNSS receivers even in the presence of dense, multiple simultaneous jamming sources across both L1 and L2 frequency bands, delivering the highest level of dual-band anti-jamming performance available for commercial and military navigation applications.

AX25 Anti-Jam CRPA System can be deployed in various flexible high-performance configurations, and is fully compatible with both civil and military GPS receivers for land, sea, air platforms (including high-speed long-endurance unmanned aerial systems) and fixed high-value installations. The product integrates an embedded high-sensitivity GNSS receiver that supports all global satellite constellations and all major frequency bands.

2. How It Works

AX25 mitigates RF interference across dual frequency bands by creating up to 7+7 simultaneous targeted nulls (7 for L1 band, 7 for L2 band) in the antenna gain pattern toward the direction of multiple jamming sources, providing unprecedented anti-jam protection even in extreme dynamic multi-jammer scenarios across both bands. The system outputs a protected, standard Radio Frequency (RF) signal that is completely free from jamming and interference across all supported bands, 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 high-dynamic 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 threat environments
  • Optimized light weight for high-value platform weight constraints
  • Ultra-compact form factor for space-constrained high-end platform installations
  • Industry-leading dual-band multi-source interference suppression performance
  • Full constellation full-band support for global navigation operations

4. Application Areas

  • Fixed Winged Aircraft, including high-performance fighter jets, large military transport aircraft, and commercial wide-body aircraft
  • Rotary Wing Aircraft, including attack helicopters, heavy-lift military helicopters, and executive transport helicopters
  • Unmanned Autonomous Systems (UAS), including high-speed long-endurance military UAVs and high-altitude long-endurance (HALE) UAVs
  • Armored Vehicles, including main battle tanks, heavy armored personnel carriers, and tactical command vehicles
  • Naval Platforms, Coast Guard Platforms, including large surface warships, aircraft carriers, and offshore patrol vessels

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FAQ

What is the core difference between the AX25 and the AX24 16-channel anti-jamming system?

The AX25 features an 8+8 dual-band 16-array CRPA design, which provides independent anti-jamming protection for both L1 and L2 frequency bands with up to 7+7 simultaneous nulls, while the AX24 uses a single-band 16-array design. This dual-band architecture allows the AX25 to suppress interference across both major GNSS frequency bands simultaneously, delivering significantly higher protection for dual-band GNSS receivers operating in extreme multi-jammer environments.

What does 7+7 simultaneous nulling mean, and how many jammers can the AX25 suppress?

The AX25's 8+8 dual-band array can create up to 7 independent targeted nulls for the L1 frequency band and 7 independent nulls for the L2 frequency band simultaneously, allowing it to effectively suppress up to 7 spatially diverse broadband jammers on the L1 band and 7 jammers on the L2 band at the same time, for a total of up to 14 simultaneous jammers across both bands.

What are the key advantages of the AX25's dual-band design for high-dynamic platforms?

The AX25's dual-band design delivers two critical advantages for high-dynamic platforms: first, it provides continuous anti-jamming protection even if one frequency band is heavily jammed, using the second band to maintain navigation lock; second, it can suppress both narrowband and wideband jammers across both bands simultaneously, ensuring stable navigation performance in the extreme multi-jammer environments commonly encountered by high-performance aircraft, attack helicopters, and high-speed UAVs.

Which satellite constellations and frequency bands does the AX25 support?

The AX25 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/B3), and GLONASS (G1/G2), providing full-band multi-constellation compatibility for global navigation operations in any region.

How does the AX25 maintain stable anti-jamming performance in extreme high-dynamic scenarios?

The AX25 uses an advanced 8+8 dual-band CRPA design with optimized real-time signal processing algorithms that can update the null positions in microseconds, even when the platform is moving at supersonic 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 high-end commercial aviation applications.

What are the size and weight advantages of the AX25 compared to other 16-channel anti-jamming systems?

The AX25 features an ultra-compact size of <160×160×40mm and a weight of <1300g, which is significantly smaller and lighter than other 16-channel anti-jamming systems on the market. This compact design makes it ideal for installation on space-constrained high-dynamic platforms where larger, heavier systems cannot be deployed.

Is the AX25 compatible with both civil and military dual-band GNSS receivers?

Yes, the AX25 is fully compatible with all types of civil and military dual-band GNSS receivers, as well as standard aircraft, ship, and vehicle navigation systems. It outputs a protected standard RF signal that requires no additional modification or signal conditioning, making integration into both new and existing platforms fast and simple.

What type of output signal does the AX25 provide?

The AX25 outputs a protected, standard Radio Frequency (RF) signal that is completely free from jamming and interference across all supported frequency bands, which is suitable for direct input to both modern and legacy GNSS receivers without the need for additional hardware modifications.