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G1000 System Maintenance Manual
Page 5-119
190-00903-00
Rev.
A
5.2.1.5 Restore Original Calibration
If needed, the original calibration can be restored to the unit using the following steps.
1.
Run GDC_FieldCal.exe.
2.
Select ‘Restore’ from the upper left-hand corner of the page.
3.
Select the CAL_(serial_num)_YYYYMMDD_HHMMSS.txt calibration file to restore to the
unit and click ‘Open’.
Figure 5-34. Calibration Files Screen
4.
Select the Serial Port on the PC that will be used to communicate with the GDC 74B, and
click ‘OK’. A progress bar screen appears while the calibration is being restored to the unit.
5.
If restoration is successful, the screen will display ‘Completed’ before returning to the main
entry screen.
6.
Click on ‘Exit’ in the upper left corner to exit the program.
7.
The original calibration is now restored, the unit may be installed in the aircraft (per the
instructions in this manual) to perform the operational system testing portion of 14 CFR Part
43 Appendix E and also the RVSM levels.
