Kongsberg Simrad ST90, Reference Manual

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Getting to know presentation modes and views
The display presentation offered by the ST90system presents several views . Different
combinations of views are organized in presentation modes .
Context
The ST90 system 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 presentation
of the echoes in each view is calculated based on your present course and speed combined
with the movements of the target(s).
The following views are available:
• Horizontal
• Vertical
• 270 Vertical
• Catch
• Echogram
• Plane
• Inspection
Tip
With the various beams provided by the ST90 system, it may be difficult to understand the
concepts. 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 display presentation, select a suitable presentation mode, and
activate the
Horizontal view.
The Horizontal view presents the 360 degrees area around your vessel from a bird’s
eye view. The current bearing is shown with a solid 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.
Getting started