Simrad SH90 - REFERENCE MANUAL REV A Reference Manual page 37

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Figure 15 Variable Range Marker (D), Compass Card (E) and
Vertical Ring (F)
The
Variable Range Marker (VRM)
range ring with range read-out. It can be used for any type of
distance marking relative to the vessel. To adjust the marker,
locate the cursor on the marker ring, press the
Operating Panel, and move the cursor with the
depressed. When the button is released, the variable range
marker radius will be locked to the new position.
The (E) is shown as short yellow lines for
Compass Card
every 10th degree along the outermost circle of the sonar view.
A triangle symbol indicates each 90th degree. It has labels
indicating North, East, South and West. It is updated when the
heading of own ship has changed more than 1 degree.
The (F) shows the selected range of the vertical
Vertical Ring
slice as a full circle in the horizontal presentation. This is an
indication of which distance a target should be presented in the
vertical view. The Vertical Ring will only be visible in those
modes that support a vertical slice.
Getting started
(D) consists of an adjustable
on the
Select
button
Select
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