Gps/Waas Advisories - Garmin GTN 650Xi Series Pilot's Manual

GPS/WAAS Advisories

ADVISORY
GPS NAVIGATION
LOST
Insufficient satellites.
Use other navigation
source.
GPS NAVIGATION
LOST
Erroneous position.
Use other navigation
source.
GPS RECEIVER
Low internal clock
battery.
GPS RECEIVER
GPS receiver needs
service.
GPS RECEIVER
GPS receiver has
failed. Check GPS
coax for electrical
short.
GPS SEARCHING
SKY
Ensure GPS antenna
has unobstructed
view of the sky.
LOSS OF
INTEGRITY (LOI)
Verify GPS position
with other
navigation
equipment.
190-02327-03 Rev. C
CONDITION
GPS position lost due to
lack of satellites.
GPS position lost due to
erroneous position.
GPS receiver indicates
that its clock battery is
low. May experience
delay when attempting to
acquire GPS position.
Almanac data may be
lost.
GPS receiver reports that
it requires service. GPS
module functionality may
be unavailable.
Internal communication
to the GPS receiver is
inoperative.
GPS receiver is acquiring
position and may take
longer than normal.
Typically occurs when the
unit is powered on after
installation or being off
for several weeks.
GPS board reports LOI.
Antenna may be shaded
from satellites.
Pilot's Guide
CORRECTIVE ACTION
Wait for GPS satellite
geometry to improve. Ensure
the aircraft has a clear view of
the sky. Use a different GPS
receiver or a non-GPS based
source of navigation.
Contact dealer for service.
Use a different GPS receiver or
a non-GPS based source of
navigation. Contact dealer for
service.
Contact dealer for service.
Use a different GPS receiver or
a non-GPS based source of
navigation. Contact dealer for
service.
Use a different GPS receiver or
a non-GPS based source of
navigation. Contact dealer for
service.
No action necessary.
Ensure the aircraft is clear of
hangars, buildings, trees, etc.
Use a different GPS receiver or
a non-GPS based source of
navigation. If the problem
persists, contact dealer for
service.
Messages
8-11