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6. CHART OVERVIEW
6-13
How to enter latitude and longitude data with the trackball module
The trackball module can also be used to enter latitude and longitude data.
1. Put the cursor in the input box. A selection cursor (light-
blue) appears.
2. Enter data by spinning the scrollwheel. Upward to de-
crease the value; downward to increase the value.
3. To switch coordinate between N and S and vice versa,
put the cursor at the right edge of the input box. Dual ar-
rows appear
4. Click to switch the coordinates. The method to switch E to W and vice versa is the
same.
6.2 How to Select the Operating Mode
Click the [Operating Mode] button at the far left side of the Status bar then click
[CHART for RADAR] to activate the chart mode.
6.3 How to Select the Chart Operating Mode
The chart display has three chart operating modes: Voyage navigation, Chart mainte-
nance and Voyage planning. Select a mode from the Status bar with the [NAVI],
[CHARTS] and [PLAN] buttons. The background of the button of the active mode is
light-blue.
Note 1: When switching between the Voyage navigation and Chart maintenance
modes it may take several minutes to read the chart when using C-Map charts or there
are many charts installed.
Note 2: If the equipment accepts no key operation after switching to the Chart main-
tenance mode, reset the power.
Selection cursor
[Operating Mode] button
For Voyage navigation
mode
For Voyage planning
mode
For Chart maintenance
mode