Furuno NAVNET GD-1920C - Manual (Page 114)

3. PLOTTER OPERATION
3-49
3.11.3 Anchor watch alarm
The anchor watch alarm informs you that your boat is moving when it should be at rest.
When the anchor watch is active, a red dashed circle with an “X” at its center marks the
anchor watch area.
Your ship's position where
you start the anchor watch
alarm.
Alarm
setting
: Alarm
area
How the anchor watch alarm works
1. Press the ALARM key to open the alarm menu.
2. Use the Trackball to select ANCHOR WATCH ALARM.
3. Press the EDIT soft key to open the anchor alarm window.
ANCHOR WATCH ALARM
▲
ON 0.010nm
OFF
▼
Anchor watch alarm window
4. Use the Trackball to select ON.
5. Use the Trackball and the alphanumeric keys to enter alarm setting: Operate the
Trackball to select digit; use the alphanumeric keys to enter value. The available
anchor watch setting is 0.001 to 9.999 miles.
6. Press the ENTER soft key or push the ENTER knob to register setting.
7. Press the ALARM key to finish.
Note: If the arrival alarm range is changed, turn off the anchor watch alarm and then turn it
on again to give priority to the anchor watch alarm.