Description Of Home Screen Displays - Furuno GP-1670 Operator's Manual

1. OPERATIONAL OVERVIEW
1.8.4

Description of home screen displays

Full screen displays
Plotter: See page 1-5.
Tide & Celestial: Your plotter provides for calculation of the tide heights for any date.
Additionally this display shows the time of sunrise, sunset, moonrise and moonset.
See section 1.17.
GPS status display: The GPS status display shows the location and signal strength
of each satellite being received. See the chapter on maintenance.
Half screen displays
The half screen displays provide the plotter display, highway display, navigation data,
and navigation data plus a graphic display (graph or meter). In most displays the data
can be changed. See the end of this section for how to change data.
Plotter: See page 1-5.
Highway: The highway display provides a graphic presentation of your vessel's track
along intended course, and is useful for monitoring ship's progress toward a waypoint.
You can zoom in and zoom out the display by rotating the RotoKey
line at the center of the screen is your intended course and the name of the waypoint
you are steering to is at top of the line. Steer your vessel so that the own ship marker
in the XTE scale stays near zero. If you go off course, the direction to steer to return
to your course is indicated with the color-coded steer direction arrow. The arrow is red
when you should steer to port; green when you should steer to starboard. The width
of the navigation lane (black area in the figure below) and the XTE (cross-track error)
range scale are equal to the XTE alarm setting. In the example illustration, the vessel
is off course to the starboard side by approx 0.3 nm.
Steer direction arrow (red)
(Steer left to keep course.)
Note: Both steer direction
arrows are not displayed in
actual operation. They are
displayed here for demon-
stration purpose.
1-14
WPT name
XTE range scale
(equal to XTE alarm range)
kn
Navigation data
(selectable)
Waypoint (red)
Steer direction arrow (green)
(Steer right to keep course.)
Own ship marker (red)
TM
. The vertical