Raytheon Pathfinder ECDIS Operator's Manual page 175

5.2.7 CMAP 93/3 Chart Scale
This menu function allows the user to display charts in Automatic mode Normal,
Medium or High or at fixed navigational purpose (e.g. harbour, approach).
Procedure: (see Figure: 1−20)
Step 1 Select S57 Options (see Figure: 1−1).
Step 2 Select Overlays. The Dialog Box appears.
Example: Setting Approach
Edition: 30.MAR.2007
Operator Manual
Figure: 1−20
With this setting, the chart is always displayed as approach chart while it is
zoomed. So all the chart object information contained in the approach
"navigational purpose" will always be displayed at all scales.
ECDIS
CMAP 93/3 Chart Scale
5−23
R
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Germany
3655DOC020102