Chapter 3: Standard Chart Operations 3-31
Target Point Arrival
Target Point Arrival
The arrival alarm is used to alert you when the vessel is approaching the target
point. The arrival alarm is defined as a circle (not visible on the screen) around
the target. You can specify radius of the arrival alarm (see Section 4.3).
The alarm is triggered when either of the following conditions is met:
• The distance to the target point is less than that specified for the arrival
alarm.
• Your vessel reaches the closest point of approach to the target (defined by a
line passing through the waypoint and perpendicular to the route leg).
➤ To cancel the arrival alarm and go towards the next waypoint in the route,
either press any key
or wait for 10 seconds.
The target becomes the origin, the next waypoint becomesthe target point, and
the two are connected by a dotted line indicating the current leg. Any previous
route leg is removed from the screen, but waypoints remain.
Note: When following a route using a SeaTalk autopilot, the autopilot will not
turn to the new waypoint until it is accepted at the autopilot control unit.
Other Follow Route Options
You can use the soft keys to follow a route from a selected waypoint (join a
route), or if already following, you can advance to the next waypoint. You can
also restart the cross track error, setting the current vessel position as the new
origin.
In addition, you can move a selected waypoint as described in Section 3.3,or
remove a waypoint from the route as described in Section 3.4.
Joining a Route
➤ To start tracking the current route at a selected waypoint:
1. Move the cursor over the required waypoint until the letters WPT and the
waypoint soft keys are displayed.
2. Press the FOLLOW FROM HERE soft key.
Your vessel follows the route, using the selected waypoint as the target
point.
3. To return to the default display, move the cursor away from the waypoint or
press CLEAR or ENTER.
WPT
FOLLOW
FROM HERE
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