
1-13190-00601-02 Rev. F
Garmin G600 Pilot’s Guide
Foreword
Sec 1
System
Sec 2
PFD
Sec 3
MFD
Sec 4
Hazard
Avoidance
Sec 5
Additional
Features
Sec 6
Annun.
& Alerts
Sec 7
Symbols
Sec 8
Glossary Appendix A
Appendix B
Index
1.3 International Geomagnetic Reference Field
The IGRF (International Geomagnetic Reference Field) model is contained in
the GRS 77 and is only updated once every five years. The IGRF model is part of
the Navigation Database. At system power-up, the IGRF models in the GRS 77
and in the Navigation Database are compared, and if the IGRF model in the GRS
77 is out of date, the user is prompted to update the IGRF model in the GRS 77.
The following prompt will appear after the G600 splash screen is acknowledged
on the MFD.
GRS MV DB UPDATE AVAILABLE.UPDATE FROM yyyy TO yyyy
(e.g. 2005 to 2012)
Follow the on-screen instructions.
1) When the Update message appears, to start the update process press the ENT
key with “OK” highlighted. To update at another time, turn the Large knob to
highlight “Cancel” and then press ENT.
Figure 1-15 GRS MV DB Update
2) After the update is complete, press the ENT key to continue normal operation.
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