user manual

190-00498-07 Rev. A
Garmin G1000 Pilot’s Guide for Cessna Nav III
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICESINDEX
592
APPENDIX B
MAGNETIC FIELD VARIATION DATABASE UPDATE
A copy of the current magnetic field variation database (MV DB) is included with the navigation database.
At startup, the system compares this version of the MV DB with that presently being used by the AHRS (GRS).
If the system determines the MV DB needs to be updated, a prompt is displayed on the Navigation Map Page.
Figure B-12 GRS Magnetic Field Variation Database Update Prompt
Loading the magnetic field variation database update:
1) With ‘OK’ highlighted, as shown in figure B-12, press the ENT Key on the MFD. A progress monitor is displayed
as shown in Figure B-13.
Figure B-13 Uploading Database to GRS
2) When the upload is complete, the system is ready for use.