Her you find a small utility for all owner of a GPS mouse with an Antaris 4 Chipset from u-blox. Tghis is a highly configurable GPS platform and there is a very complete software for both Desktop and mobile windows called u-center. I just needed to switch between 3 settings, so i wrote this little app. You can just set one of the 3 modes for dynamic platform: 2- Pedestrian 3- Automotive 6- Airborne < 2g The other possible modes for 1- Static 4- Sea 5- Airborne <1g 7- airborne <4g are not implemented All changes sent to the mouse are imediately active and remain valid until the next power down. To maintain a setting it has to be saved with the UBX-cfg-cfg command. This is also implemented. in the attached file you will find the compiled exe, the sourcecode and the serial DLL.