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RayChart 420/420D Chartplotter
The current route is reversed on the screen and the waypoints are renumbered.
To follow the reversed route:
4. Press the GOTO key. The Goto/Follow functions are displayed.
5. Press FOLLOW ROUTE.
Your vessel’s current position becomes the origin and the first waypoint in
the reversed route becomes the target waypoint. The function bar is
removed.
Target point arrival
You can set up target alarms (see Chapter 4) to alert you when the vessel is
approaching the target point. The arrival alarm is defined as a circle (not visible
on the screen), with a specified radius around the target.
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 (ie. it crosses a
line passing through the waypoint and perpendicular to the track).
To cancel the Arrival alarm and go towards the next waypoint in the route,
press any key.
The target becomes the origin, the next waypoint becomes the target point and
the two are connected by a dotted line indicating the current leg.
If the target waypoint was the subject of a GoTo, or was the last waypoint in a
route, the pop-up alarm is cleared and any temporary waypoint is removed.
Alter a route
You can use the functions 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 XTE, setting the current vessel position as the new origin.
In addition, you can move a selected waypoint as described in section 3.2, or
remove a waypoint from the route as described in section 3.3.
Join a route
To start following the current route from a selected waypoint:
1. Move the cursor over a route waypoint until the ROUTE OPTIONS
function is displayed: