Garmin APOLLO GX65 User Manual

Page 311

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Problem

Possible Cause

Action

No GPS signal
reception

Obstructed signal
path

Move aircraft out of
hangar or away
from buildings to
provide an
unobstructed view
of the sky for the
antenna

Incorrect seed
position, time, or
UTC differential
entered

Check these
settings, if necessary
in the System
Functions

If using a wrong
antenna: faulty
external antenna,
wiring, or
connections

Contact your dealer
to check the
antenna and other
wiring

Interference

Check for GPS L1
interference
sources. Contact
your dealer or II
Morrow tech
support.

MSG light stays on
after power-on.
Displayed message
is: IN USE SENSOR
CANNOT
COMPUTE Lat/Lon

The In-Use position
sensor is not able to
calculate a position

Check for
obstructions and
connections to the
antenna.

The GPS engine may
need to be reset.

No User waypoints
show up on the
Map display or the
Nearest waypoint
list

Runway Limits are
set for a value that
is too large

Reset the Runway
Limits value, see
page 3-12

Waypoint
sequencing is
erratic

Direct-To entry
option setting may
not be correct

If you are flying
Direct-To, the
option should be set
to “May Clear”, see
page 7-9

13-3

Troubleshooting

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