Raymarine GPS navigation - Manual (Page 42)

alarm is initially set to 0.10 nm from the factory to provide an arrival alert in
the event that one is not set by the operator.
3.7.2 The Anchor Alarm
The anchor alarm is intended to be used to monitor your vessel’s position
while at anchor. If the vessel begins to drift beyond the entered distance of
the anchor alarm, the alarm sound off and notify the crew of the possible
dragging of the anchor.
The distance value to input for the an-
* -
alarm zone depends on many
tors, such as the amount of anchor line
EVENT
out and the depth, the proximity of other
objects or vessels, and weather
SOUNDS WHEN
tions. However, the incremental
VESSEL CROSSES ZONE
that can be entered is 0.01 nautical
mile steps which is equivalent to approximately 60 feet or 18 meters per step.
The first task, when entering an anchor watch alarm, is to press
key as you drop anchor to store your present position as a waypoint. Make
a mental note of the
EVENT
memory # (number), The number appears for
approximately 3 seconds on the and certainly is the last used
waypoint. If you miss seeing the number, just check the list. The
stored Event will be the highlighted on the list.
Press key. Press the Use the numeric keys
to enter the drift limit distance. Input values can range to 9.99
nautical miles. the value is correct to set the anchor watch
alarm.
Now press key, and enter the EVENT # that you’ve just saved
to be your destination and then The anchor watch is
now set and will be monitoring the anchor drop point.
Example: To set an anchor limit of 100 yards, at 2000
0, (300 feet).
In the event that you drift beyond the distance set for the anchor watch alarm,
the audio beeper will sound and the ANC characters will be indicated
on-screen in the alarm warning area. silence the audible
alarm.
OPERATION 3-28