The PntGuard System

Specifications

PntGuard is a complete Maritime Navigation Assurance Platform, purpose-built to protect vessels against GNSS jamming, spoofing, and meaconing while delivering an authenticated Alternative Position, Navigation and Timing (APNT) capability anywhere in the world.

The system combines three integrated components—the Above Deck Unit (ADU), Below Deck Unit (BDU), and the SkyRouter™ Fleet Intelligence Platform—to provide trusted navigation from the vessel’s bridge to fleet operations centres.

Designed for commercial shipping, offshore operations, government agencies, and defence organizations, PntGuard seamlessly integrates into existing bridge systems while providing operational intelligence far beyond conventional GNSS monitoring.

  • Third-generation NAL ALTM™ APNT receiver
  • Authenticated independent positioning
  • Continuous GNSS integrity monitoring
  • Real-time jamming detection
  • Real-time spoofing detection
  • Meaconing detection
  • 100% global satellite coverage
  • Marine-grade environmental design
  • Low power consumption
  • Secure encrypted communication with the BDU
  • Professional ECDIS-grade display platform
  • Open Bridge architecture
  • Standard NMEA 0183 output
  • Integration with ECDIS
  • Integration with INS
  • Integration with Voyage Data Recorders (VDR)
  • Integration with third-party navigation equipment
  • Simple retrofit installation

The open architecture enables shipowners to integrate trusted APNT information into existing bridge systems without replacing current navigation equipment.

GNSS Forensic Recorder™

Every second, the system securely records:

  • Verified APNT position
  • Conventional GNSS position
  • Jamming events
  • Spoofing alerts
  • Meaconing events
  • Navigation integrity
  • System diagnostics

Up to 60 days of encrypted operational data can be downloaded directly from the BDU for:

  • Insurance investigations
  • Sanctions compliance
  • Flag State investigations
  • Port State inspections
  • Legal proceedings
  • Maritime incident analysis

Providing an independent record of the vessel’s true navigation history.

SkyRouter™ extends PntGuard beyond the vessel by providing operators with a secure cloud-based Fleet Intelligence Platform.

Using the Iridium® satellite network, SkyRouter delivers continuous fleet visibility with 100% global coverage, allowing operators to monitor vessels anywhere on Earth. Unlike conventional tracking systems, SkyRouter displays both:

  • Verified APNT position
  • Conventional GNSS position

allowing operators to immediately distinguish manipulated GNSS positions from the vessel’s true authenticated location.

Fleet Intelligence
Operators can monitor:

  • Fleet-wide vessel locations
  • Verified APNT positioning
  • GNSS positioning
  • Navigation integrity
  • Jamming alerts
  • Spoofing alerts
  • Meaconing alerts
  • Vessel health
  • Historical vessel tracks
  • Operational status

Open API Integration

Organizations with existing fleet management systems, operational command centres, or maritime security platforms can integrate PntGuard directly into their own software environment.

Available interfaces include:

  • REST API
  • Secure JSON
  • WebSocket
  • Event streaming
  • Historical data access
  • Remote configuration
  • Geofence management
  • Fleet monitoring
  • GNSS integrity information
  • GNSS Forensic Recorder access

Customers can choose between using SkyRouter™ as a turnkey solution or integrating PntGuard into their own operational infrastructure.

Download the PntGuard Technical Specifications

Download the complete technical datasheet, including hardware specifications, system architecture, interfaces, certifications, environmental ratings, and integration options.

PntGuard hardware built for integration with bridge systems

Built for Integration

PntGuard has been engineered to complement—not replace—existing maritime navigation systems.

It integrates with:

  • ECDIS
  • Integrated Navigation Systems (INS)
  • Voyage Data Recorders (VDR)
  • Bridge Alert Management Systems (BAMS)
  • Fleet Management Platforms
  • Security Operations Centres
  • Maritime Operations Centres
  • Third-party navigation systems

Installation requires minimal modification to existing bridge infrastructure while significantly increasing navigation resilience.

Commercially Proven

PntGuard has been developed through one of the maritime industry’s most comprehensive operational validation programmes.

The system has accumulated more than 100,000 nautical miles of monitored sea trials while undergoing continuous testing in collaboration with commercial shipowners, insurers, compliance organizations, and government stakeholders.

It has also been independently evaluated by major commercial organizations before fleet adoption and successfully validated during Jammertest 2024 and 2025 under realistic electronic warfare conditions.

Today, leading international fleet operators have selected PntGuard following extensive onboard testing and operational validation, demonstrating confidence in the system’s maturity, reliability, and operational performance.

Unlike many emerging APNT solutions, PntGuard has progressed beyond laboratory demonstrations and limited pilot programmes to become a commercially deployable maritime navigation assurance platform.

PntGuard system commercially proven in maritime operations