GHP 10 Installation Instructions 15
2. Select Continue.
3. Select an option:
• If the steering test turns the boat in the correct direction, select
Yes.
• If the steering test turns the boat in the opposite direction, select
No.
4. If you selected No in step 3, repeat steps 1–2.
NOTE: If it is incorrect, the steering direction can also be changed
during the autotune procedure (page 16).
Select an option:
• If you connected a NMEA 2000-compatible engine (or engines)
to the NMEA 2000 network, select NMEA 2000.
• If you did not connect a NMEA 2000-compatible engine (or
engines), select the engine (or engines) to which you connected
the tachometer sensor from the CCU.
◦ For a single-engine boat, select Port.
• If tachometer data is unavailable or unusable, select GPS data as
a speed source.
◦ When GPS data is used as a speed source, the maximum
speed for all vessel types must be congured.
• If you did not connect a speed source, select None.
◦ If the autopilot does not perform well using None as the
speed source, Garmin recommends connecting a tachometer
or GPS as the speed source.
This procedure does not appear if GPS or None is selected as the speed
source.
1. With the engine (or engines) running, compare the RPM readings on
the GHC 20 with the tachometer (or tachometers) on the dashboard
of your boat.
2. If the values do not match, use the arrows to adjust the Pulses Per
Rev values.
NOTE: When you adjust the Pulses Per Rev with the arrows, there
is a delay before the new RPM readings appear on the GHC 20.
Ensure you wait until the GHC 20 adjusts to the new reading for
each adjustment.
The GHC 20 displays the values you chose when you ran the Dockside
Wizard.
1. Examine the results of the Dockside Wizard.
2. Select any incorrect value and select Select.
3. Correct the value.
4. Repeat steps 2 and 3 for all incorrect values.
5. When you are nished reviewing the values, select Done.
The Sea Trial Wizard congures the fundamental sensors on the
autopilot, and it is extremely important to complete the wizard in
conditions appropriate for your boat.
Complete the Sea Trial Wizard in calm water. The nature of calm water
is relative to the size and shape of your boat.
• Ensure your boat does not rock while sitting still or moving very
slowly.
• Ensure your boat is not signicantly affected by the wind.
• Keep the weight on your boat balanced. DO NOT move around
on the boat while completing any of the steps in the Sea Trial
Wizard.
Before you start the Sea Trial Wizard, you must drive to an open area of
calm water.
1. Turn on the GHP 10.
2. Select an option:
• If the Sea Trial Wizard starts automatically, proceed to step 3.
• If the Sea Trial Wizard does not start automatically, select Menu
> Setup > Dealer Autopilot Conguration > Wizards > Sea
Trial Wizard.
3. Select Begin.
1. Drive your boat to an open area of calm water.
2. Start the Sea Trial Wizard (page 15).
3. If necessary, congure the planing RPM (page 15).
4. If necessary, congure the planing speed (page 15).
5. If necessary, congure the high RPM limit (page 15).
6. If necessary, congure the maximum speed (page 15).
7. Calibrate the compass (page 16).
8. Perform the autotune procedure (page 16).
9. Set north (page 16).
10. If necessary, set the ne heading adjustment (page 16).
NOTE: This procedure does not appear if you select displacement hull
as your vessel type, or if you select None as the speed source.
1. Note the RPM reading from the tachometer on the dashboard of
your boat at the point your boat transitions from displacement to
planing speed.
2. If the tachometer value does not match the value on the GHC 20,
use the arrows to adjust the value.
3. Select Done.
NOTE: This procedure appears only when GPS is selected as the speed
source and Planing Hull is selected as the vessel type.
1. Use the arrows on the GHC 20 to adjust the value.
2. Select Done.
NOTE: This procedure appears only when GPS is selected as the speed
source.
1. Use the arrows on the GHC 20 to adjust the value.
2. Select Done.
NOTE: The procedure appears only when GPS is selected as the speed
source.
1. Use the arrows on the GHC 20 to adjust the value.
2. Select Done.
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