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High-performance board-level positioning module with compass and barometric altimeter for robots and unmanned vehicles.

Zubax GNSS 2 is a multipurpose high-performance board-level positioning module interfaced via CAN bus, USB, and UART. It includes a multi-system concurrent GPS + GLONASS + Galileo receiver, a high-precision barometric altimeter, and a 3-axis compass with thermal compensation. Zubax GNSS 2 supports a variety of standard protocols, which ensures compatibility with third party software and hardware: UAVCAN (over CAN bus), NMEA 0183 (over USB and UART), and the u-Blox M8 binary protocol.


  • Positioning module for unmanned vehicles (aerial, ground, underwater, etc) and robots.
  • General-purpose embedded positioning module.



  • State-of-the-art concurrent GPS + GLONASS + Galileo receiver u-blox MAX-M8Q.
    • Full RF shielding of the GNSS circuits ensures reliable operation in high-EMI environments.
    • 35 mm high gain patch antenna with large ground plane for reliable reception even in deep urban canyons.
    • Analog front end with LNA and SAW ensures high noise resilience.
    • Supercapacitor-based backup power source enables low time-to-first-fix (a few seconds).
    • Up to 15 Hz solution update rate.
  • High precision digital barometer TE Connectivity MS5611.
    • Altitude resolution 10 cm.
  • High precision 3-axis digital compass STMicroelectronics LIS3MDL with thermal compensation.


  • Doubly redundant CAN bus interface (UAVCAN).
    • Continuous self diagnostic and failure detection outputs.
    • Remote reconfiguration.
    • Can be used in non-redundant mode as well (one interface will be inactive).
    • Firmware upgrade.
  • USB (virtual serial port interface).
    • NMEA output for all sensors.
    • Direct access to the u-blox module.
    • Diagnostics and configuration via the command-line interface.
    • Firmware upgrade.
  • UART
    • NMEA output for all sensors.


  • Top notch positioning performance.
  • Extensive, continuous self diagnostics and failure detection make Zubax GNSS a favorable choice for mission-critical applications.
  • Compact size.
  • High quality assurance:
    • Every manufactured unit undergoes a rigorous testing procedure. The testing log for each produced unit is available on the web.
    • Protection against unlicensed (counterfeit) production by means of a digital signature installed on every manufactured unit.

Related announcements and discussions

Second GNSS Zubax gone dead after some time

We bought a total of 3 Zubax GNSS so far. The first one worked for a couple of months than it died, wouldn’t make a fix anymore. Connected to U-Center too and same, no sats picked up. We sent that unit back and bought 2 new ones. The new ones worked good for 3-4 months than one of the two started to…

Zubax GNSS 2.0 on Arducopter 3.6

So I am having issues with poor performance with the GPS. I passed a number of logs and performed a few tests for the macine I am having issues with. Here is Randys response. "Txs for the logs. So the GPS doesn’t seem to be doing very well. 4 satellites is far too few. Normally at least 12 sat…

Couple questions

first question. Is this the latest firmware version com.zubax.gnss-2.2-4.1.62c8d4a.compound.bin 2017-11-21 20:05 209K Second question. Does it make sense to upgrade. Third question. Anyone have a link to the can interface tool. I understand you can’t upgrade the gnss wiht out the can port tool. So…

UAVCAN compatible APM firmware

Hello all, I need some help. I would like to use the Zubax GNSS 2 with the Pixhawk 2.1 running on Mission Planner but I can’t seem to find compatible firmware that will allow me to enable the UAVCAN BUS. I tried installing Arducopter 3.3.3 but now Mission Planner will not allow me to connect. Any…

GNSS2 compass orientation in Pixhawk/PX4

With my configuration GPS and baro are working fine but I always get–even after running through the whole calibration process–“Mag sensors inconsistent”. Seems that I have to choose the right orientation of the Zubax one–what´s the right one?…

Zubax USB I/O on Ubuntu 16.04

What serial or USB port is used for I/O when the Zubax GNSS is plugged into a USB 2.0 port on a PC running Ubuntu 16.04? The GNSS shows up in the lsusb list okay but I cannot determine which /dev/ttt* device can be used for serial I/O. Many thanks, Christopher…

New integration guides for Zubax GNSS 2 published by Titan Elite, Inc

Our fine American distributors Titan Elite, Inc. have published a new pair of integration guides for Zubax GNSS 2 aimed at customers who use it with Pixhawk: Zubax GNSS 2 Hardware Setup & Configuration Guide for Pixhawk Users Zubax GNSS 2 Configuration Guide for Pixhawk Users Running PX4 Firmwa…

GNSS2 don’t work with arduplane 3.9.0

I have a problem.I am using UAVCAN to check GNSS2 that everything is normal. 4.jpg3968x2240 3.59 MB 1.png845x675 68 KB The configuration of my mission planer is as follows. 2.png1200x879 183 KB I refer to the official guide link.…

Why professionals choose Zubax GNSS 2

Our friends from Titan Elite, Inc. have published a brief one-pager highlighting the advantages of Zubax GNSS 2 for light unmanned aerial systems. Read it here: Why-professionals-choose-the-Zubax-GNSS-2-over-economical-hobby-grade-receivers-JUL-2018.pdf (426.7 KB) Also, make sure to check out this o…

Zubax GNSS 2 vs Hex Here GNSS

Our fine colleagues from Titan Elite, Inc. have prepared a side-to-side comparison of our Zubax GNSS 2 against Hex Here GNSS. Check it out here:…