Chapter 7: Using the Radar 159
... Using VRMs and EBLs
What is a VRM?
A Variable Range Marker (VRM) is a circle
centred on your vessel’s position and fixed
with respect to the heading mode.
When this circle is adjusted to align with a
target, its range from your boat is
measured and displayed on the ADJUST
VRM soft key.
The data is also displayed if you select the
VRM with the cursor.
What is an EBL?
An Electronic Bearing Line (EBL) is a line
drawn from your boat to the edge of the
window.
When this line is rotated to align with a
target, its bearing relative to your boat’s
heading is measured and displayed on the
ADJUST EBL soft key.
The data is also displayed if you select the
EBL with the cursor.
Note:
To change the EBL reference from relative to magnetic or true, see page 152.
Combined VRM and EBL
A VRM and an EBL can be combined to
measure both the range and the bearing
of the specified target.
Note:
VRMs and EBLs are local settings and
will therefore only affect the individual dis-
play on which you are working.
D8408_1
VRM
D8425_1
EBL
D8403_1
EBL
VRM
Target
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