NorthStar 972 Quickstart Manual And Reference Manual page 140

ALARM ALARM MESSAGE
ICON
NO HEADING DATA
Reference section 9 — Alarms and TideTrack
136
Alarms
Table 3: 972 alarms (continued)
ACTIVATED WHEN...
The 972 is not receiving data from the heading
sensor.
Alarm audio
You can turn the alarm audio on so that
the 972 will beep when any alarm occurs,
or you can turn the audio off completely so
that you'll only see alarm icons and
messages displayed on the screen:
1. On the alarm screen, press the cursor pad to
Alarm Audio,
select then press
2. Press the cursor pad to display
then press ENTER.
Anchor alarm
The anchor alarm will signal when your
vessel moves a certain distance from the
position of your vessel when you pressed
the Drop anchor key. You can turn the
anchor alarm or , and set the distance
On off
that you can drift without triggering the
alarm. The default setting is 0.20 nautical
miles (about 1200 feet). You can set the
anchor alarm to as little as 0.01 nm, but be
sure to allow for drifting the length of the
anchor chain, plus a safety factor to allow
for any GPS inaccuracy.
CONTROLLED
Remember to press
you intentionally move away from the
anchor-drop point.
To set the anchor alarm:
1. Press
the anchor. A waypoint named
Edit alarm
.
created at this location.
OFF ON
or ,
2. Press ENTER.
3. Press the cursor pad to highlight
Alarm,
4. Press the cursor pad to turn the alarm to
5. Set the distance your vessel can normally be
expected to move on its anchor chain by
pressing the cursor pad to the right, and using
the keypad to enter the distance. (Remember
to add a safety factor to allow for GPS inaccu-
racy.)
6. Press ENTER.
To turn off the anchor alarm and delete
the anchor waypoint, press Raise anchor
on the
Alarms
CLEARS
ON ALARM AFTER
SCREEN? TIME–OUT?
No No
NOTE:
Raise Anchor
Drop anchor
where you've dropped
ANCR
Anchor
Edit alarm
then press .
screen, followed by
CLEARS
WHEN
OK?
No
before
is
on
.
.
ENTER
Northstar 972