SatGen 4 Release notes
Version 4.2.26 – 1 September 2025
- New Feature: Added support for Real Time simulation with LabSat 4.
- New Feature: Orbital Trajectory support.
- New Feature: Addition of SBAS signal for simulation.
- New Feature: Addition of ‘recent files’ list in the file menu.
- Bug Fix: Fix for parts of a trajectory changing to straight line when saving.
- Bug Fix: Fix for Altitude not being applied correctly in script mode.
- Bug Fix: Saving trajectories as KML, CSV & NMEA.
- Bug Fix: Fix for unstable GPS L1+L2 signal simulation when replaying to Novatel receivers.
- Bug Fix: Fix for satellite controls not taking affect during simulation.
- Optimisation: Improvements to road routing logic.
- Optimisation: Support for Novatel OEM7 logging IONUTC messages during SatGen simulations.
- Optimisation: Support for Novatel OEM7 logging ALMANAC messages during SatGen simulations.
- Optimisation: Improvements to stability when generating from a previously saved .sgen file.
- Optimisation: Improvements to routing display.
Version 4.1.17 – 22 May 2024
- Feature: LabSat4 output introduced.
- Feature: LabSat 3 Wideband and LabSat4 .ini files now contain a list of all signals used in the simulation.
- Feature: Support for multiple LabSat RealTime units.
- Feature: Ionospheric and tropospheric delays may be entirely disabled in the Advanced settings.
- Feature: Implemented a timeline for the simulation which can be navigated via the graphs, and it adds additional functionality such as inserting a waypoint anywhere along the route, and adjusting satellite selection and attenuation at any point in time during the simulation.
- Feature: Satellite selection and attenuation can now be changed in a scripted scenario using the new "satellite" function.
- Feature: Added additional graphs that include an overlay to display the number of active satellites during the simulation.
- Optimization: Geostationary BeiDou satellites are now simulated on all devices, including LabSat2 and LabSat3.
- Optimization: Artificial noise (software attenuation) quality improved.
- Optimization: Accuracy of the Klobuchar ionospheric model significantly increased, it now follows the principles from the original paper by John Klobuchar published in 1987.
- Bug Fix: Rare crash related to HASP dongle detection.
- Bug Fix: Inaccurate ionospheric delays when simulating several constellations.
- Bug Fix: Real time simulations are no longer slowed down by redrawing the map.
- Bug Fix: GLONASS PRN 1 had a wrong frequency slot (0 instead of 1)
- Bug Fix: Start Delay and End Delay didn't work for imported NMEA or VBOX trajectories.
- Bug Fix: Datum is now correctly applied to adjust the altitude values during a simulation.
- Misc: .NET 8 is now required and .NET 8.0.4 is now installed with SatGen
- Misc: HASP driver updated to version 9.16.
Version 4.0.35 – September 2023
- Initial Release