Revision 1.7.2
Page 221
Figure 256
– Configuration of Rolling Road Display
The following data items may be displayed on the rolling road display:
COG (Course Over Ground)
SOG (Speed Over Ground)
BTW (Bearing to Waypoint)
DTW (Distance to Waypoint)
VMG (Velocity Made Good)
ETA (Estimated Time of Arrival)
TTG (Time to Go)
XTE (Cross Track Error)
Set
Drift
BOD (Bearing, Origin to Destination)
HDG (Heading)
Figure 257 below shows a rolling road display. The navigation parameters that have been selected
are COG, SOG, ETA, and TTG. On the navigation highway itself, the waypoint name, if available, is
displayed on the upper left and the waypoint number, if available, is displayed on the upper right. The
dashed vertical line along the center of the highway represents the current leg of the route. The
distance of the boat to the left or the right of the line represents the XTE (Cross Track Error). The
angle of the boat relative to the vertical line represents the difference between the boat’s COG
(Course Over Ground) and the BTW (Bearing to Waypoint). The scale of the XTE display can be
selected by setting a value for the XTE alarm (See Section 5.2.1
, “Alert Setup Menu”, on page 27 for
details).
