Here there is no explanation about the gain offset, what is it?
You can find the GNSS antenna gain settings in this submenu Settings → GPS → Antenna → Models:
Clicking on the "More " button will open a window which describes the antenna gain:
You can then click on “Export CSV” to export the antenna gain in a CSV file which you can edit and reload into Skydel.
Fore more information, please visit this section on the user manual: Orolia Skydel User Manual - Settings GPS Antenna.
Thanks for everything Grace!!!