Lowrance Elite FS 7 User Manual page 61

Arrival radius
Sets an invisible circle around the destination waypoint. The vessel
is considered arrived at the waypoint when it is within this radius.
When you are navigating a route, the arrival radius defines the point
at which a turn is initiated.
The arrival circle (1) should be adjusted according to boat speed.
The higher the speed, the wider the circle.
The intention is to make the autopilot start the heading change in
due time to make a smooth turn onto the next leg.
The figure below may be used to select the appropriate waypoint
circle when creating the route.
Ú Note:
The distance between any waypoints in a route must not
be smaller than the radius of the waypoint arrival circle.
XTE limit
Defines how far the vessel can deviate from the selected route. If
the vessel goes beyond this limit, an alarm is activated.
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Navigating | ELITE FS User Manual