Pilot's Guide

1-6
Garmin G500/600 Pilot’s Guide
190-00601-02 Rev. H
Cover TOC
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
GlossaryAppendix A
Appendix B
Index
Attitude Heading Reference System (AHRS)
NOTE: Aggressive maneuvering while AHRS is not operating in normal
mode may degrade AHRS accuracy.
Attitude and heading information is displayed on the PFD when the AHRS
receives appropriate combinations of information from the external sensor
inputs.
AHRS Inputs AHRS
Mode
AHRS Outputs
GPS Magnetometer Air Data Attitude Heading
Available Available — Normal Available Available
Available Unavailable Available No Mag Available GPS Track
Available Unavailable Unavailable No Air/
No Mag
Available GPS Track
Unavailable Available Available No GPS Available Available
Unavailable Available Unavailable Fail Unavailable Unavailable
Unavailable Unavailable — Fail Unavailable Unavailable
Table 1-2 AHRS Operation
AHRS Normal
Operation
Heading
Invalid
AHRS No-GPS
Mode
Attitude/Heading
Invalid
Figure 1-6 AHRS Operation
Loss of GPS, magnetometer, or air data inputs is communicated to the pilot by
message advisory alerts (refer to Section 6 for specific AHRS alert information).
Any failure of the internal AHRS inertial sensors results in loss of attitude and
heading information (indicated by red “X” flags over the corresponding flight
instruments).
A maximum of two GPS inputs are provided to the AHRS. If GPS information
from one of the inputs fails, the AHRS uses the remaining GPS input and an
alert message is issued to inform the pilot. If both GPS inputs fail, the AHRS