Roke challenges the cost barrier in GNSS protection with launch of Nav-Sync Armour

Roke has launched Nav-Sync Armour, a Controlled Reception Pattern Antenna (CRPA) system redefining access to resilient navigation across globally contested environments. 

GNSS interference is now a routine feature of modern operations. Across Ukraine, the Baltics and the Middle East, ships, aircraft and critical infrastructure are regularly disrupted by low-cost, ground-based interference that degrades or denies navigation.

GNSS signals are inherently weak by the time they reach Earth, making them vulnerable whether used in Critical National Infrastructure (CNI) or Defence applications. By transmitting electromagnetic noise, jammers can overwhelm legitimate satellite signals, preventing receivers from maintaining an accurate position solution.

Nav-Sync Armour is designed to counter this threat and support the growth of autonomous platforms. It is a multi-element CRPA that actively protects GNSS signals in contested environments.

Unlike conventional antennas, which receive signals uniformly from all directions, it uses multiple receiver channels and advanced digital processing to distinguish between genuine satellite signals and interference. Meaning it suppresses jamming sources in real time while maintaining the integrity of authentic signals.

The system can mitigate multiple concurrent in-band jammers across L1 or L2 frequencies, delivering a stable and trusted GNSS output that enables continued operation under active interference.

Mission success increasingly depends on autonomy. These air, maritime or ground platforms require the persistence and scale that modern operations demand, yet they are often the least protected. Nav-Sync Armour enables resilient navigation where it has previously been impractical or unaffordable.

In today’s battlespace, resilience is no longer about protecting a few high-value assets — it is about ensuring enough systems can continue to operate to deliver mission success.

Nav-Sync Armour shifts the balance back in favour of the platform, removing traditional barriers of cost, complexity and restriction to make high-performance protection available at the scale modern operations require.

Roke has been a pioneer in CRPA technology for over four decades, having developed the world’s first anti-jam CRPA system in 1984. Its expertise has since been used to protect some of the world’s most advanced air platforms.

Nav-Sync Armour builds on this heritage, combining proven expertise with a modern digital architecture to deliver enhanced performance in a compact, low-SWaP solution. Designed as a direct replacement for existing GNSS antennas, it provides a straightforward route to upgrading resilience without significant platform redesign.

The system has been engineered for rapid integration with minimal impact on existing platform designs. Its compact form factor and low power consumption make it suitable for a wide range of installations, while its UK sovereign design ensures it is free from ITAR constraints, reducing supply chain friction and enabling broader adoption.  Roke has worked with other UK partners to create an onshore supply chain capable of manufacturing in the thousands.

It connects directly to existing GNSS receivers via standard RF interfaces, simplifying integration and retrofit.

Nav-Sync Armour forms part of Roke’s wider Resilient PNT portfolio, delivering layered approaches to maintain navigation resilience in GNSS-contested environments. The portfolio reflects a broader shift in defence capability, moving from selective protection of high-value assets to scalable protection across the force.

Nav-Sync Armour marks a step change in GNSS protection, bringing assured navigation capability into operational use wherever and whenever it is required.