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Related topics
Applying filters, page 52
Sonar views, page 69
Filters, page 96
Applying filters
Filters are algorithms that reduce noise clutter in the trawl images. You can apply a Ping to
Ping, Noise Reduction, or a Limit Strong Targets filter to the sonar view.
Prerequisites
The Sonar Head must be running to do this procedure.
Context
These buttons are located on the top bar.
Note
These filters only apply to the net opening sonar view, not
the up and down-sounder views.
Procedure
1
Click one of the filter buttons.
Observe the changes in the sonar view.
2
If you are using the Ping to Ping filter, you can Increase or decrease the filter effect.
a
Click the
Display Widget
icon.
This icon is located in the lower-right corner of the sonar view.
b
Drag the
Filter
slider to adjust the strength of the filter.
3
To turn all the filters off, deselect the filter buttons (the buttons will no longer be
highlighted).
Related topics
Ping to Ping filter, page 97
Noise Reduction filter, page 97
Limit Strong Targets filter, page 97
Adjusting the sonar views, page 49
Simrad FM90 Reference Manual
Summary of Contents for FM90
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