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Navigate
Version 1.5
Operator's Manual
will need to create a route in RTEl first "
The somewhat triangular shape at the bottom center of the screen
"" represents the bow ofthe boat. Icons on the screen are always related
to this object. The two dash lines extending from the bottom of the
screen towards the center of the screen" represent your cross-track
error limits. The dotted line extending from the bow of the boat icon
represents your course line. The course line changes direction at the
flags, which represent your waypoints, and continues through to the
end of the active route you entered in RTEl. Notice that the cross-
track error lines end at the first flag. As you pass the flag and start the
next leg ofyour course, these lines will be redrawn to reflect the course
change. Icons that you
see
left and right ofyour course are navigation
markers that you defme in the Waypoint Bank (WPTl) where a sym-
bol is used as the first character of the waypoint description. The
Panorama and Plot screens will automatically place these navigation
markers on the screen as you approach them.
The degree values that you see are your Course Over Ground (COG),
as calculated by the GPS receiver's position fix to position fix, and
Bearing (BRG) from your present position to the waypoint. The speed
value is your Speed Over Ground (SOG) as calculated by the GPS. The
distance value displayed as the Range (RNG) is calculated from your
present position to the waypoint. The Time-To-Go (TTG) is the calcu-
lated time it will take you to reach the waypoint, based on your Waypoint
Closure Velocity (see
NAV4
description).
To keep the screen from jumping around when you are stopped, the
screen freezes the graphic representation when your speed is under
0.5 Kn in DGPS mode or 2.0
Kn
in GPS mode. Once you get underway,
your course details will update appropriately.
You will see a
RL or GC symbol in the upper right corner ofthe display
indicating whether you are navigating under Rhumb Line or Great
Circle. This is set in the CFG Navigate menu.
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