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1-7190-00601-02 Rev. B
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
1.1.10 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.
Attitude/Heading Invalid
available
available
unavailable
unavailable
available
unavailable
unavailable
available
Airspeed Data
Magnetometer
unavailable
available
GPS
AHRS Normal
Operation
AHRS no-
Mag Mode
AHRS no-Mag/
no-Air Mode
Heading Invalid
AHRS
no-GPS
Mode
Figure 1-9 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
will continue to provide attitude and heading information to the PFD as long as
magnetometer and airspeed data are available and valid.