Furuno GP-3500F - Manual (Page 109)

8. ALARMS
8-3
8.2 Arrival Alarm/Anchor Watch Alarm
The arrival alarm informs you that your boat is approaching a destination
waypoint. The area that defines an arrival zone is that of a circle which you
approach from the outside of the circle. The alarm will be released if your boat
enters the circle. When the arrival alarm is active, a red dashed circle marks the
arrival alarm area.
Alarm
Own ship's
position
Setting range
Destination waypoint
How the arrival alarm works
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 marks the anchor
watch area.
: Alarm
Own ship's
position
Setting range
How the anchor watch alarm works
Note: The arrival and anchor watch alarms cannot be turned on together.
1. Press the [MENU] key to show the main menu.
2. Press the [6] key to show the ALARMS SETUP menu.
3. Rotate the [ENTER] knob to select ARRIVAL/ANCHOR WATCH.
4. Press the [1] or [2] key to select “1. ARRIVAL” or “2. ANCHR” as appropriate.
5. Rotate the [ENTER] knob to select RANGE TO MONITOR below
ARRIVAL/ANCHOR WATCH.
6. Press the numeric keys to enter the range value. (Setting range: 0.001 to
9.999 nm)
7. Press the [ENTER] knob.
8. Press the [MENU] key several times to close the menu.
9. For the anchor watch alarm, place the cursor on own ship’s position and then
press the [GOTO] key.
The anchor watch alarm range is shown with a red dashed circle, its center at
own ship’s position at the moment you completed step 9. If own ship goes out of
this range, the audible and visual alarms are released.
Note : To deactivate the alarm, select “3. OFF” at step 4.