Pilot's Guide

6-1190-01150-02 Rev. F
Garmin G500H 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
6 ANNUNCIATIONS AND ALERTS
6.1 Alerts
Alert Message Description Action
ADC1 ALT EC ADC Altitude •
Error Correction is
unavailable.
The alert is enabled •
and the GDC is
reporting that
altitude correction is
unavailable.
Contact your Garmin dealer for •
service.
AHRS1/2 GPS AHRS1/2 not •
receiving any GPS
information.
AHRS1/2 operating •
exclusively in
no-GPS reversionary
mode.
AHRS1/2 using •
backup GPS source.
AHRS1/2 not •
receiving backup
GPS information.
Two GPS devices •
are configured as
present and AHRS1
is not receiving
GPS data from
the backup (2nd)
device.
Verify navigators are on and have •
a GPS signal and are not in self-
test mode.
Check AFMS for limitations. •
Contact your Garmin dealer for •
service.