4 ST60+ Graphic Display Owner’s Handbook
Rolling road
The rolling road is a representation of your vessel’s position with respect to a
waypoint, and a steer bar shows the direction you should steer to achieve the
required course. The number of arrows in the steer bar is proportional to the
amount of cross track error; each arrow represents 0.05 nm of error.
The direction of the roll indicates whether you are moving towards or away from
the waypoint. A small boat graphic indicates the attitude of your boat with
respect to the waypoint.
Cross track error (XTE) information, bearing to waypoint (BTW) information and
distance to waypoint (DTW) information are displayed with the rolling road.
Graphs
You can see the history of some information by displaying it as a graph, of data
against time. Refer to the
Chapter selection and content
illustration above and
the following tables to see where to find the various graphs.
Changing graph timescales
You can change the timescale of a displayed graph. To do this:
1. With the graph displayed, hold down the
reset button for 1 second, so that
the timescale menu is displayed.
Typical pages
D6433-1
Single-element page Dual-element page Triple-element page
Quad-element page Rolling road page Graph page
81268_3.book Page 4 Tuesday, August 1, 2006 8:05 AM
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