30
381295/B
Getting to know presentation modes and views
The SN90 presentation offers several views. Different combinations of views are
organized in presentation modes.
Context
The SN90 presents the echo data in different views. All information from each ping is
shown in all the views simultaneously. Each view uses its individual transmit frequency,
and you set up the different views with different operating parameters. The behaviour
of the echoes in each view is controlled by your course and speed combined with the
movements of the target(s).
The following views are available:
•
Horizontal
•
Vertical
•
Plane
•
Inspection
•
Navigation
Tip
With the various beams provided by the SN90, it may be difficult to understand
the concept. How do these beams "behave" in the water? By means of a graphic
presentation, the
Beam Visualization
dialog box attempts to give you a better
understanding of how the acoustic beams are transmitted into the water. Open the
Beam
Visualization
dialog box from the
Setup
menu.
Procedure
1
At the bottom of the SN90 presentation, select a suitable presentation mode, and
activate the
Horizontal
view.
The
Horizontal
view in the SN90 presentation covers the entire 160° sector The
current bearing is shown with a continuous line pointing out from the vessel
position. You can change the angle by means of the
Bearing
function on the
Main
menu. You can also select the bearing line and drag it sideways.
The bow marker is shown as a dotted line drawn from the bow of the vessel symbol.
The line reflects your vessel’s current heading. The bow marker can be enabled or
disabled on the
Visual Objects
menu. Note that the bow marker is only shown with
a forward-looking transducer.
The distance from the vessel symbol in the centre of the circle to the outer ring
corresponds to the currently selected range.
• The current settings for range, gain and tilt are shown in the upper left corner
of the view. When you change the tilt a dotted line presents the requested tilt
while the solid line presents the actual tilt. You can change the tilt angle by
Simrad SN90 Operator Manual
Summary of Contents for SN90
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