Query whether the Ionospheric model is used in the current scenario. The command returns:
- ‘OFF’, if the ionospheric model is not used
- ‘ON’ if the Klobuchar model is used
- a comma-separated list of files, if IONEX files are used.
When ‘OFF’ or ‘ON’ mode is selected and ionospheric correction can be determined using SBAS satellites, then SBAS satellites information is used.
When IONEX files are used and ionospheric correction cannot be determined using the specified IONEX files e.g., because the IONEX files do not cover the current time or position, then the unit will act as if the ‘ON’ mode was selected.