Garmin GHP 20 Marine Autopilot System for Viking Owner's Manual - Page 7

Powerboat Autopilot Operation Powerboat Tips Dynamic Menu Option The first option in the menu accessed by selecting Menu from the heading screen changes based on the following conditions: • If the autopilot is not steering a pattern, select the option to go to the engagement screen of the pattern last used. • If the autopilot is steering a pattern, select the option to go to the configuration screen for the pattern. If there are no configurable settings for the pattern, you cannot select the menu option. Heading Hold You can engage the autopilot heading hold function to maintain your current heading without steering the helm. Engaging Heading Hold From the heading screen, select Engage. The autopilot steers your boat to maintain the current heading. Heading Adjustment When the autopilot is engaged, you can adjust the heading using the helm (if your autopilot is equipped with Shadow Drive™) or the soft keys on the autopilot. Powerboat Autopilot Operation Heading Adjustment with the Helm You can steer the boat manually from the helm while the autopilot is engaged. The autopilot does not steer the boat while you have the helm, and the message "You Have the Helm" flashes at the top of the screen in yellow. If you manually maintain a specific heading for a few seconds, the autopilot resumes control of the new heading, and the heading screen displays the message "Autopilot Engaged". Resuming a Pattern After a Helm Heading Adjustment When the autopilot is steering a pattern, you might need to steer the boat manually from the helm to avoid hazards in the water. After you have passed all hazards, you must manually restart the pattern. The dynamic menu option (page 3) enables you to quickly resume the pattern. Select Menu > [Pattern Name] to resume the last-used pattern. Heading Adjustment with the Autopilot You can steer your boat using the autopilot. Step steering turns the boat in increments of 1° when you select the steering soft key, and in larger increments when you hold the steering soft key. Rudder steering turns the boat in increments of 1° when you select the steering soft key, and steers the boat when you hold the steering soft key. Changing the Steering Mode 1. From the heading screen, select Menu > Steering Mode. 2. Select an option: • Select Steering Mode > Rudder to enable rudder steering • Select Steering Mode > Step to enable step steering. GHC 10 Owner's Manual 3