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RayTech Navigator User’s Guide
5-22
Note: When using VRM/EBL, you may want to turn off the
range rings to make the VRMs clearer. To do this,
use the Color control in the Control Panel to change
the color of the range rings to the same color as the
background.
When a VRM/EBL pair is active, its bearing and range are displayed
in its associated data box, which can be moved, deleted or reinstated.
VRMs move if you change the range scale, so that the actual range
you have marked is maintained. VRM/EBLs also move if you offset
the center.
The bearing information is displayed as either the bearing relative to
your vessels heading or (if heading data is available from a position
fixer or compass) the actual bearing in degrees magnetic or degrees
true. These are controlled by the setup parameters.
The VRM/EBL functions allow you to perform the following tasks:
• Measure the range of a target or point from your vessel's
position, using a VRM.
• Measure the bearing of a target or point from your vessel's
position, using an EBL.
Note: Range and bearing measurements are displayed in
the Data box. You can determine the range and
bearing by moving the cur-sor over the target and
checking the Data Box readings. You can also
estimate the range to a target by reference to the
range rings.