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

Zubax GNSS 2 is a multipurpose high-performance 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

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:…

GNSS 2 GPS+GLO+GALILEO nav update rate?

Hello, I couldn’t find any specific information of how fast is the navigation message update rate when GPS+GLONASS+GALILEO is used? For a M8N it would be 3hz, but M8Q is faster for dual and single systems, so is it >=5hz? There is so much divergent information so I could be wrong about those rat…

Zubax GNSS 2 is available for purchase in our store (EU)

Hello, my fellow carbon-based lifeforms, We’ve been asked about this a lot lately, so rejoice: Zubax GNSS 2 can now be purchased/shipped from our Estonian warehouse. Customers located in the EEA will benefit greatly from the lack of customs in the way. image.jpg1964x1718 590 KB While you’re at it,…

UAVCAN in Zubax GNSS 1.0

Hello, I was getting the 1.0 version of zubax before. I found that the format of its UAVCAN is different from that published on the official website. I would like to ask you where you can see the UAVCAN tutorial in the corresponding format. Thank you…

Zubax GNSS 1 how to use CLI

I have a gnss1.0 firmware, I can enter the serial command line interface,the official website is a 2.0 tutorial, what should I do. Thank you!…

CLI in zubax gnss?

Hello,I have encountered a problem when using zubax gnss. In the serial command line interface, enter “help” with only four available commands “reboot, zubax_id, wait, download” are output.I suspect that I only entered the BootLoader mode and did not enter the firmware. what should I do? Thank you!…

Transplantation zubax_gnss software to STM32F103 platform

Hello All: The zubax_gnss software default support STM32F105_107 platform. I want to transplantation zubax_gnss software to STM32F103 platform. Can you give me some advice please?…

Dumb Question about the on board Baro

Just ordered my first Zubax GPS, so be gentle this is my first question. I am replacing a I2C based compass and standard GPS due to what I think is I2C noise giving me all kinds of grief with the compass. Can Ports are less susceptible to the noise issues I am experiencing, so I bit the bullet and…