Geometrics MetalMapper 2x2 Operation Manual page 19

The status window is always shown in the software. From left to right it indicates: date and
time from the computer's clock, event log, GPS fix quality indicator, and position and IMU
information.
GPS fix information is parsed out of the NMEA string. The first number displayed is the GPS
quality. Status of 2 indicates GPS position without RTK correction. Status of 4 indicates GPS
position with RTK correction. When GPS status 4 (RTK) is being collected a picture of a satellite
will appear. The second number is the number of satellites used. Clicking on the GPS status
window will display the entire NMEA string that is being read by the software.
(Example of GPS information with no RTK information.)
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