WHEELTEC G90/G70 Multi-Constellation Multi-Band High-Precision Positioning Module

The WHEELTEC G90 and G70 are high-precision, multi-constellation RTK positioning modules designed for demanding outdoor robotics, autonomous vehicles, and DIY maker projects. Supporting GPS, GLONASS, BeiDou, Galileo, and QZSS, these modules provide centimetre-level accuracy and seamless integration with ROS1 and ROS2 environments. They are ideal for South African students, educators, and developers building advanced navigation systems.

Multi-constellation RTK positioning modules

The WHEELTEC G90 and G70 modules support joint positioning across multiple satellite systems to deliver reliable, high-precision location data. To streamline development, both modules come with ready-to-use ROS1 and ROS2 code examples.

Dual-antenna heading and positioning

Built on the NebulasIV GNSS SoC, the G90 module supports dual-antenna synchronous tracking to provide both precise RTK positioning and heading determination. It features a dual-RTK engine and adaptive RTCM format recognition, making it highly suitable for UAVs, robotic lawnmowers, and automated agricultural machinery.

Technical specifications of G90

The G90 module features 1408 channels and achieves an RTK horizontal accuracy of 0.8 cm + 1 PPM CEP. It operates on a 5V supply at 500mA, weighs 43g, and includes Type-C USB, SH1.0 12-pin, and MCX antenna interfaces.

Compact differential GNSS module

The G70 is a lightweight, low-power RTK module designed for outdoor navigation and custom maker projects. It provides single-point positioning accuracy within 1.5 metres, which sharpens to a precise 0.01 metres once RTK differential correction signals are connected.

Technical specifications of G70

Equipped with 184 tracking channels, the G70 module delivers centimetre-level RTK accuracy and features a high tracking sensitivity of -167dBm. Housed in a compact 54.5 by 46.5 by 13.2 mm enclosure, it weighs just 36g and includes 4MB of onboard flash memory.