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ALARMS
The Map Guide has several alarms. You can set an arrival alarm to flash
a warning message and sound a tone when you cross a preset distance
from a waypoint. For example, if you have the arrival alarm set to .1 mile,
then the alarm will flash a message when you come within .1 mile of the
recalled waypoint. The course deviation indicator alarm (CDI) can warns
when your track drifts too far to the right or left of the course line to the
waypoint. For example, if the alarm is set to .1 mile, then the alarm flashes
a message if you drift .1 of a mile or more to the right or left of the line to
the waypoint. The anchor alarm is triggered when you drift outside of a
preset radius. Again, using the .1 mile as an example, if you’re anchored
and your boat moves more than .1 of a mile, the alarm will flash a mes-
sage and sound a tone.
To use any of these alarms, first press the MENU key,
then select the “ALARMS/CDI” menu. A screen similar
to the one shown at right appears. Press the up or down
arrow key to move the black box to the desired alarm,
then press the right arrow key to turn it on.
To adjust an alarm’s distance, move the black box to
the alarm’s “DIS” menu item, then press the right or left
arrow keys to increase or decrease the alarm’s dis-
tance.
When you’re finished, press the EXIT key to erase this menu.
Important Alarm Notes:
Anchor Alarm - Since civilian users don’t receive the accuracy given to
military users, the anchor alarm may be triggered even when you’re sit-
ting still. This typically happens when using small (less than .05 mile)
anchor alarm ranges. If you have a DGPS beacon receiver connected to
the Map Guide, smaller ranges may be usable.
Arrival Alarm - If you set the arrival alarm’s distance to a small number,
and you run a route (see the routes section), the Map Guide may not
show navigation data to the next waypoint, once you arrive at the first
one, since you may not be able to come close enough to the first waypoint
to trip the arrival alarm.
MESSAGES
The DGPS message selections are found on the Alarms/CDI menu shown
above. Pressing the EXIT key erases these messages.
Содержание Map Guide
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