Positioning, Navigation, and Timing (PNT) Resiliency in Critical National Infrastructure (CNI)
Spirent is leading the delivery of an innovative and comprehensive test framework designed to drive measurable resilience in PNT systems for CNI.

Positioning, Navigation and Timing impacts all CNI sectors - where are your vulnerabilities?

Threats to PNT systems are on the rise – and Spirent has the solution
In March 2025, the UK Government, with support from the Royal Institute of Navigation, issued its framework for stronger PNT resilience. The message is clear: CNI operators must boost their PNT testing and prepare for growing disruption risks. The government has recognized the need for stronger PNT resilience — and Spirent has the solutions to help you meet them.
Read our case study on GNSS spoofing in the Aviation Industry
Introducing the Spirent PNT Health Check
Spirent is a trusted leader in PNT simulation, testing, and evaluation—perfect for conducting a PNT Health Check. Our health checks bring together unmatched industry expertise, ensuring you benefit from best-in-class knowledge. From intelligent test case design that accelerates development cycles, to expert identification of critical “edge cases” that expose potential vulnerabilities, Spirent provides the assurance that your systems remain protected against disruptions and threats.
PNT Alliance and PNT Shopfront
The Spirent Health Check is guided by the PNT Alliance, aligned with the RIN Best Practices Framework. This alliance brings together partners to strengthen national resilience by shaping and defining the measurement metrics and testing methodologies for CNI.
Through our dedicated PNT shopfront, we showcase a comprehensive range of products and services. With industry experts driving innovation in PNT resiliency across the UK, you can be confident you’re accessing the right expertise and fully equipped solutions tailored to your organization’s needs. Find out more below.
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PNT Resiliency in Critical National Infrastructure
Learn how we can help with PNT Resiliency in Critical National Infrastructure