GPS Navigator J-NAV500
40
2. Setting
1) Arrival alarm
The arrival alarm can be set to alert you when
you are within a specified distance from your
waypoint. The arrival alarm can be set within a
range of
0.00 to 9.99 nm
.
• A setting of 0.00 turns off the alarm.
• This alarm is also valid in direct route naviga-
tion.
• When following a route plan, the arrival alarm
selected in setting up the route plan takes prior-
ity. (See Section, 4.10 “Navigation according
to route plans.”)
2) Anchor alarm
The anchor alarm is intended to be used to moni-
tor your ship’s position while at anchor. The alarm
goes off when the ship drifts beyond the entered
distance. This distance beyond which the alarm
will be triggered can be set in a range of
0.00 to
9.99 nm
.
• A setting of 0.00 turns off the alarm.
Since the settings of the arrival alarm and
anchor alarm conflict, you can only set an
arrival alarm or an anchor alarm, but not both
together.
When both alarms are set, the last made
setting is valid.
3) Off-course alarm
This alarm sounds when you stray more than a
set distance off a set course. A distance in a range
of
0.00 to 9.99 nm
can be set.
• A setting of 0.00 turns off the alarm.
4) DGPS alarm
This alarm sounds once to notify that GPS posi-
tion fix values will be used instead of DGPS po-
sition fix values.
DGPS alarm
on
(default)
/off
Alarm
range
Waypoint
Position
Set
distance
Waypoint
Set distance
Planned course
Origin
Alarm
range
Set
distance
Waypoint
Alarm range
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