The 2.x firmware introduces support for new ELLIPSE Series 3 hardware. It brings many performance improvements by taking advantage of a more powerful 64 bit CPU allowing double precision computations and more complex algorithms.

A lot of code has been reworked to improve the overall quality, stability, reliability of the sensor and especially regarding how the time is managed.

The main new features and additions are listed below:

  • Adds support for new ELLIPSE Series 3 hardware
  • Improved navigation filter accuracy for ELLIPSE Series 3 hardware with double precision numbers
  • Improve the filter stability and reliability in difficult conditions and during low dynamics
  • This firmware includes the latest World Magnetic Model to cover the 2020 to 2025 time frame
  • Improved UTC and PPS time management to better cop with noisy PPS signals

Firmware Compatibility

This firmware is compatible and intended to work with the following applications and libraries versions:

  • Inertial SDK 7.3 and above
  • sbgCenter 3.4 and above
  • sbgECom 3.1 and above

ELLIPSE Compatibility

This firmware is compatible with all ELLIPSE versions and hardware revisions.

Firmware Download

This firmware is not yet packaged with a new Inertia SDK. You should download it and install it manually using the sbgFirmwareUpdater tool.

You can also download below the firmware file only according to your ELLIPSE hardware generation. To determine your ELLIPSE hardware generation, simply check the product label.

If you see on the label HW: 3.x you have an ELLIPSE Generation 3 otherwise you have an ELLIPSE Generation 1 or 2.

Download Firmware (ELLIPSE v1 & v2) Download Firmware (ELLIPSE v3)

Changes for release 2.5.169-stable

New Features

  • [ELIFW-572] - Add support for the Teledyne Wayfinder DVL protocol

  • [ELIFW-582] - Increased on board magnetic calibration max point from 500 to 1000 (ELLIPSE v3)


  • [ELIFW-574] - Added magnetometer output in the ADA message

  • [ELIFW-576] - Implement a robust 2D mag magnetic error model for EKF

  • [ELIFW-579] - Improved on board magnetic field reliability for weak magnetic field conditions

  • [ELIFW-581] - Optimize ublox GNSS signals filtering settings for (ELLIPSE v3)

Bug Fixes

  • [ELIFW-578] - Fixed GNSS position usage status in ELLIPSE V1/V2, in case of low rate system status message output

  • [ELIFW-583] - Fix ELLIPSE2-A-G4A2-L2C support