Chart Orientation - Raytheon RayChart 620 Operation Manual

Chapter 6: Customizing the RayChart 620

Chart Orientation

You can select the normal orientation of your chart according to your
personal preference. The orientation can be one of the following:
• North Up: The chart is displayed with north upwards. This is the
standard chart mode.
• Course Up: The chart is displayed with the currently selected course
leg upwards. If you change course, the chart will rotate to keep the
course upwards.
• Head Up: The chart is displayed with the vessel's current heading
upwards. This is useful if you wish to compare the chart with a radar
screen.
As the heading changes the chart will rotate, although some
damping is provided to stop it swinging too wildly. You can set the
amount of damping by adjusting the Head Up Response parameter
in the system set up (see page 60).
When you first select Head Up Mode, or if you select Home Mode
when in Head Up Mode, the cursor is homed on the vessel and the
RayChart display is in Relative Motion mode. In this mode, the chart
moves to keep the vessel in the centre of the display. When you
move the cursor away from the vessel, the display returns to normal
True Motion, and the vessel moves across the chart.
Note: When the chart rotates in Course Up or Head Up mode, it may
not be possible to display the chart text. In this case, markers are left at
the text points which you can interrogate using the cursor (see Section
3.2).
To select the orientation:
1. Press MENU to display the main menus.
2. Use the trackpad or the SCREEN soft key to highlight the
3. Press the soft key corresponding to the chart orientation you
4. Press the EXIT soft key to clear the soft key labels.
ORIENTATION option from the SCREEN menu, and press
ENTER. The soft key labels change, as follows:
require. The new chart orientation is displayed.
The display reverts to the default soft keys display, with the new
chart orientation.
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