Septentrio launches mosaic-G5 P8 anti-jamming GNSS module

Septentrio, part of Hexagon, launches the mosaic-G5 P8, a multi-frequency GNSS module of 23 x 16 mm that weighs as little as 2.2 g. It targets UAVs, marine vessels, rail and other mission-critical devices that must keep positioning under jamming and spoofing.

By SamPublished May 18, 2026Updated November 3, 20262 min read

The mosaic-G5 P8 relies on AIM+ Ultimate, Septentrio’s interference-mitigation technology, to protect the receiver against powerful and sophisticated jamming and spoofing attacks. The company says the module delivers accurate, resilient positioning without performance compromises despite its small size.

Beyond mitigation, the receiver reports on its radio environment. It flags interference and spoofing and adds power and frequency readings that may help locate the jammers. Septentrio also designed the module for integrity: it aims to report positions truthfully, so that a host system can switch quickly to other sensors when GNSS is disrupted in heavily compromised environments.

Communication with the module is secured through input and output authentication, which blocks unauthorised access and interception of data. The receiver offers a high update rate at low latency for dynamic applications.

Developers can order an evaluation kit that connects straight to autopilots, and the RxTools interface handles configuration and trials. Septentrio presents the module at SOF Week in Tampa, USA, from May 18 to 21, at booth 609.

Why it matters

Because the module reports positions truthfully and warns of interference, a host system can move to other sensors when GNSS is disrupted. That matters for UAVs and other platforms operating in contested environments. Yasmine Hunter, product manager at Septentrio, says the module combines GNSS resilience, security and very small size in a single unit; the company supplies no independent test data for the claim.

At 2.2 g, the module suits small airframes, and an evaluation kit wired for direct autopilot connections lets integrators prototype with it before designing it in. The module also targets marine vessels and rail, so its use is not limited to drones. Septentrio says the receiver keeps full performance despite its small footprint.

Septentrio, headquartered in Leuven, Belgium, belongs to Hexagon and holds ISO 9001 certification. It supplies positioning technology for robotics, construction, survey, maritime, logistics and unmanned aerial vehicles, with offices in North America and Asia.

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