Raymarine 631 PLUS GPS Receiver User Manual


 
Chapter 3: Standard Chart Operations 3-31
Target Point Arrival
Target Point Arrival
The arrival alarm is used to alert youwhen the vessel isapproaching the target
point.The arrivalalarm isdefined as acircle (notvisible 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.
Yourvessel reaches the closest pointof approachto thetarget(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.
Thetargetbecomes theorigin,the nextwaypoint becomesthe targetpoint,and
the two areconnected bya dotted line indicating the current leg. Any previous
route leg is removed from the screen, but waypoints remain.
Note: Whenfollowing aroute using aSeaTalk autopilot, theautopilot willnot
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 tothedefault display, movethe cursoraway fromthe waypointor
press CLEAR or ENTER.
WPT
FOLLOW
FROM HERE