• AJT105S 4-Element CRPA GPS Anti-Jamming & Anti-Spoofing Unit
  • AJT105S 4-Element CRPA GPS Anti-Jamming & Anti-Spoofing Unit
  • AJT105S 4-Element CRPA GPS Anti-Jamming & Anti-Spoofing Unit
  • AJT105S 4-Element CRPA GPS Anti-Jamming & Anti-Spoofing Unit

AJT105S 4-Element CRPA GPS Anti-Jamming & Anti-Spoofing Unit

The AJT105S is a high-performance 4-element CRPA GNSS protection terminal engineered for mission-critical autonomous navigation. Built with a larger CRPA antenna aperture than conventional 4-element products, it delivers superior satellite reception sensitivity, stronger weak-signal tracking, and highly stable positioning in complex electromagnetic environments. Its advanced anti-spoofing architecture provides robust protection against asynchronous, synchronous, and forwarding spoofing attacks, making it a clear upgrade over standard market alternatives.

  • AJT105S 4-Element CRPA GPS Anti-Jamming & Anti-Spoofing Unit
  • AJT105S 4-Element CRPA GPS Anti-Jamming & Anti-Spoofing Unit

Description

Key Features

No. Product Features
1 CRPA Antenna Quantity Larger 4-Element CRPA Antenna – A physically larger antenna aperture improves signal capture, reception gain, and anti-interference spatial nulling performance
2 Dual-Frequency GNSS Support Supports GPS L1 and BDS B1I for resilient navigation continuity
3 Anti-Jamming Immunity Direction Up to 4 simultaneous jammer suppression
4 Anti- spoofing Powerful Anti-Spoofing Beyond Standard 4-Element Solutions – Suppresses asynchronous, synchronous, and relay spoofing while outputting clean GNSS signals to the backend receiver.
5 Anti-jamming 105 dB Anti-Jamming Performance – Delivers excellent protection against narrowband, broadband, pulse, sweep, and Gaussian interference
6 Multi-Platform Deployment Ideal not only for UAVs, but also unmanned ground vehicles (UGVs), autonomous robots, unmanned vessels, and intelligent mobile systems
7 Easy Integration Compatible with PX4, Ardupilot, Pixhawk, CUAV V5+, and other mainstream flight control ecosystems
8 Data Output NMEA 0183 / ublox protocol output (PVT output can be customized)
9 Port Type TTL (or RS422) and RF dual integration modes
10 Power Supply 5–17 VDC (12 V recommended)



 Technical Specifications

See specification table below:

NO. Parameter Specification
1 Frequency BDS B1 / GPS L1
2 Anti-jamming 105 dB ISR (single source)
3 Multi-jammer Up to 3 jammers
4 Position Accuracy ≤10 m under jamming
5 Velocity Accuracy ≤0.2 m/s
6 Timing Accuracy ≤100 ns
7 Power Input 5–17 VDC (12 V recommended)
8 Power Consumption ≤13 W
9 Dimensions 150 × 130 × 22  mm
10 Weight ≤550 g



Typical Applications


Ideal for UAV navigation protection, autonomous platform guidance, fleet defense, critical infrastructure timing, and secure logistics navigation. For autonomous systems operating in spoofing-heavy or GNSS-denied environments, AJT105S delivers a decisive advantage over traditional 4-element terminals through stronger anti-spoofing intelligence, better reception performance, and true multi-domain platform adaptability.
It is similar to the 8/16/32 Element CRPA anti-jamming terminal, AJT105S fully compatible with mainstream open-source flight controllers including PX4, Ardupilot, Pixhawk, and V5+ platforms, enabling rapid integration without modifying navigation algorithms.



Contact Our Engineers, Discuss Your Mission Requirements.

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