Garmin 906-2500-01 GPS Receiver User Manual


 
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Shadow Drive ™
Warning Horn
When the Shadow Drive feature of the autopilot is enabled, the helm acts as an autopilot dis-engage switch. If
the autopilot is steering the boat, it will surrender control to the helm when the helm is moved. The autopilot
will automatically re-engage when the boat is on a constant heading and there is no helm movement.
Go to Stored Heading
If you press and release the Down Arrow button while the autopilot is in heading hold
mode, the heading at the instant the button is pressed becomes the stored heading.
Subsequently, while you are in heading hold (at any heading), pressing and releasing
the Up Arrow button will cause the autopilot to steer to the stored heading.
Reverse
The autopilot will attempt to perform any of its steering functions when the boat
is backing in reverse gear. To engage the system in reverse:
1) Start from [Standby]
2) Press and hold the GPS [Rev] button
3) Press and release
the [Auto/Standby] button
4) Release the GPS [Rev] button
The System sounds a warning horn on the following events:
1. When the rudder is hard against a stop (Double Beep).
2. When the compass is suspect. This may happen when the boat rate of turn exceeds the gyroscope’s
measurement range. It is most likely to happen when the boat is making high speed turns in rough water. The
autopilot will not hold heading for several minutes after such an event (1 solid 3 second beep).
3. When the GPS sends a warning to the autopilot that the navigation data is not reliable. Press any key on the
remote to silence the horn (Continuous beep).
4. When GPS Navigation is terminated by Shadow Drive (1 Single Short Beep).