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2. INSTALLATION
2-20
SAT TRACKING STATUS
TIMER 5 '52" OK
NO. GOOD STATUS
GPS1 8 8 D3D
GPS2 7 7 D3D
GPS3 8 8 D3D
Satellites
being
tracked
Satellites used for
measurement
"3D" shown when no
beacon receiver is used.
"OK" displayed when
the "GOOD" column
shows that the number
of satellites acquired is
five or more.
Satellite tracking status display
When the system is turned on for the first time it is in the “cold-start” state, which
means there is no satellite data (almanac data) stored. In this condition it takes
about 20 minutes to find heading. When heading is found the display shows
“OK.” The timer at the top left corner of the screen shows time since power on. If
OK is not displayed within 30 minutes after turning on the power, the antenna
mounting location may not be suitable. Suspect that the number of satellites in
view is less than five due to signal blockage. Resolve the problem and then
recheck tracking status.
If the heading error is between 5° and 10°, adjust orientation of the antenna unit,
while watching the heading indication on the display. (For the open-type antenna,
loosen the nut at the center of the antenna unit to adjust antenna orientation.)
2.6.2 Choosing heading source
Choose the source of heading data as below.
CAUTION
Never switch from internal to external
heading while the autopilot is in the
automatic mode. Change to the
manual mode before switching.
1. Press the [HDG SETUP] key.
HEADING SETUP
OFFSET : +000.0
(SERVICE ONLY)
HEADING : INT
INT HDG - - - . -
EXT HDG - - - . -
OFFSET : Heading offset. See service manual for instructions.
"SERVICE ONLY" means heading offset shown
for display only.
HEADING : Select heading source. Choose INT for normal use.
If a gyrocomapss is connected for primary means,
leaving this equipment as backup, choose EXT.
INT HDG : Bow heading. Includes offset.
EXT HDG : Heading fed from external equipment.
Heading setup menu
2. Use the Omnipad to choose HEADING.
3. Press the [ENT] key.