General Positioning

GNSS is a superb technology with practical applications in many fields. However, in anything but aerial applications, there are occasions when even the most accurate GNSS receivers struggle. This isn’t down to flaws in the equipment; it’s simply a case of the satellite signals being blocked, or reflecting off nearby objects and causing multi-path errors so the receiver is unable to do its job.

Our products help solve these problems and improve the real-word performance of the equipment you already use. By feeding GNSS signals from your existing receiver into our add-on inertial unit, the system is able to create a combined GNSS-aided inertial navigation solution that produces measurements based on both technologies. Not only does this mean additional measurements like roll, pitch and yaw are available at all times, it also means the system continues to output data when the GNSS solution is poor or even unavailable—so there are no gaps in your data and measurements can still be made in locations where conventional GNSS systems typically don’t work.



Today’s unmanned aerial and ground vehicles require compact, lightweight and highly accurate GPS + INS solutions. We have designed the innovative xNAV200 to meet these requirements. The system is designed to deliver superior position, roll/pitch and heading data even in challenging operating environments.



The xNAV500 is a compact, lightweight GPS-aided inertial navigation system, perfectly suited for all applications where size and weight as well as performance matter. It measures position (< 90cm), heading (0.15°), roll/pitch (0.05°) and much more in real-time. Your data can also be post-processed later. It is ideal for use on UAVs and other weight constrained applications.



The xNAV550 integrates dual L1/L2 GNSS receivers for 2 cm RTK position accuracy. The improved receivers also mean better heading accuracy. The xNAV550 is 5 mm taller than the other models and slightly heavier at 425 g to accommodate to bigger receivers, but still matches the other models for length and width and features the same IP65 rated anodised aluminium enclosure.




The perfect route to upgrading your GNSS. Protect your investment and combine your GNSS with our Inertial+. Designed as a drop in component, the Inertial+ blends accelerometers and gyros with data from an external GNSS receiver. It gives smooth, continuous position measurements, even in poor GNSS environments. The Inertial+ is a true Inertial Navigation System at an exceptionally low cost.



The Survey+ is a compact, turnkey GNSS-aided inertial navigation system for providing stable, reliable and highly accurate position and orientation measurements. It is designed for airborne laser scanning applications as well as road surveying and pavement inspection projects. It seamlessly integrates with other on-board sensors like aerial cameras, laser scanners or LIDAR technology.



Land-based survey
Aerial survey
Mobile mapping
Lidar mapping
System integration
Ground studies
Transport network surveying


Position measured up to 1 cm accuracy
Velocity measured up to 1 cm/s without the need for a base-station
100 or 250 Hz systems
Real-time output
Additional measurements unavailable to GNSS-only solutions
No data interruptions during GNSS blackout
One box solution for easy installation
Distance output to trigger external devices
Event input to synchronise with external devices
Single satellite aiding (tight coupling)
NTRIP receiver compatible
Post-processing using RINEX files
Comprehensive software suite included at no extra cost


ILMFDenver, USA13-15th Feb February 2017
GEO BusinessLondon, UK23-24th May 2017
IntergeoBerlin, Germany10-12th Oct 2017