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Selecting the Preferred Heading Source
NOTICE
For best results, use the autopilot CCU internal compass for the heading source. Using a third-party GPS
compass can cause the data to be delivered erratically and may result in excessive delays. The autopilot needs
timely information, and therefore cannot often use third-party GPS compass data for GPS location or speed.
If a third-party GPS compass is used, the autopilot will likely report loss of navigation data and speed source
periodically.
If you have more than one heading source on the network, you can select a your preferred source. The source
could be a compatible GPS compass or a magnetic heading sensor.
1 From the autopilot screen, select Menu > Autopilot Setup > Preferred Sources
2 Select a source.
If the selected heading source is unavailable, the autopilot screen does not display any data.
Enabling the Shadow Drive
™
Feature
WARNING
If the Shadow Drive feature is disabled, steering the boat manually will not disengage the autopilot system. You
must use the helm control or connected chartplotter to disengage the autopilot system.
NOTE: The Shadow Drive feature is not available on all autopilot models.
If the Shadow Drive feature has been disabled, you must enable it again before you can steer the boat manually
to disengage the autopilot system.
1 From the autopilot screen, select Menu > Autopilot Setup > Shadow Drive Setup.
2 If Disabled is shown, select Shadow Drive to enable the Shadow Drive feature.
The Shadow Drive feature is enabled. You can repeat these steps to disable the feature again.
Engaging the Autopilot
When you engage the autopilot, the autopilot takes control of the helm and steers the boat to maintain your
heading.
From the Autopilot screen, select Menu > Engage Heading Hold or Menu > Engage Circle.
Your intended heading shows in the center of the Autopilot screen.
Adjusting the Heading Using the Helm
NOTE: You must enable the Shadow Drive feature before you can adjust the heading using the helm while the
autopilot is engaged (Enabling the Shadow Drive
™
Feature, page76).
With the autopilot engaged, manually steer the boat using the helm.
Shadow Drive and at the top of the heading screen appear in yellow, and you have full steering control
using the helm.
When you release the helm and maintain a specific heading for a few seconds, the autopilot resumes a
heading hold at the new heading.
Adjusting the Heading with the Chartplotter in Step Steering Mode
1 Engage a heading hold (Engaging the Autopilot, page76).
2 Select an option:
• Select <1° or 1°> to initiate a single 1° turn.
• Select <<10° or 10°>> to initiate a single 10° turn.
• Hold <1° or 1°> to initiate a rate-controlled turn.
The boat continues to turn until you let go of the key.
• Hold <<10° or 10°>> to initiate a sequence of 10° turns.
76 Autopilot
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