Using Radar To Measure Distances, Ranges, And Bearings - Raymarine E Series User Reference Handbook

9.10 Using radar to measure distances,
ranges, and bearings
When you are using the radar application, you can measure
distances, ranges and bearings in a variety of ways.
These options are detailed in the table below:
Distances
Functions Between Points
Range Rings Yes
(approximate
distance)
Cursor No
Variable Range No
Markers (VRMs)
Electronic No
Bearing Lines
(EBLs)
Floating VRMs Yes
Floating EBLs No
Measuring using the range rings
Use the range rings to gauge the approximate distances between
points. Range rings are concentric circles displayed on the screen
and centred from your boat at pre-set distances. The number and
spacing of the rings changes as you range in and out.
138
Range From
Your Vessel Bearings
Yes No
(approximate
range)
Yes Yes
Yes No
No Yes
No No
No Yes
Measuring using the cursor
To measure the bearing and range from your boat to a specified
target, move the cursor to the appropriate position on the screen.
Note: If cursor position is not shown in the Databar, go to Menu
> Databar Setup > Configure.
Measuring using Variable Range Markers (VRMs)
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 softkey. The data is
also displayed if you select the VRM with the cursor.
E-Series Widescreen User reference