2-1
2. Chart Plotter
This chapter shows you how to do the following:
• Use and prepare the chart plotter
• Set chart plotter related alarms
• Control the track
2.1 Charts
2.1.1 Chart Description
A world map in raster chart format is included in your unit. A vector chart for the US
coastline (Alaska and Hawaii included) is provided also. To use this chart plotter as a
navigational aid, have electronic charts (stored in the hard disk) for the area you nav-
igate. Contact your dealer about charts for your area. To control the charts stored in
your system, see the section "13.7 How to Control Charts".
Raster charts are digitized scans of NOAA paper charts. Raster charts have informa-
tion like notes, source diagrams, tidal diamonds, horizontal and vertical datum, etc.
Vector charts are digital files that contain marine features and information created for
marine navigation. These charts are made according to the International Hydrograph-
ic Organization (IHO).
Fishing charts are vector charts that show only detailed depth contours. These are
available for US waters.
See the next two pages for sample charts.
2.1.2 How to Select a Chart Type
Push the RotoKey, rotate the key to select [Chart] followed by [Raster], [Vector] or
[Fishing] then push the key.
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