Gemini 720id Product Manual page 64

Seanet Pro Operation
The current displayed Velocity of Sound used value is what was applied to the current sonar
scan. If Auto VOS is "OFF" then the Velocity of Sound used is based on the Manual VOS
applied in the 'Environment' (e.g. click on 'Settings' – 'Environment' in Seanet Toolbar).
Overlay
Figure 7.11.
When enabled, this option can be used to place and size an overlay shape or outline onto
the Sonar display canvas.
Style
Size
Pos
Line Width
Centre On
Document: 0685-SOM-00001, Issue: 12
Note
The Gemini Sonar will apply Manual VOS in steps of 3.2m·s
the minimum limit of 1400m·s
'Environment' page then Gemini will round to nearest 3.2m·s
consequently the 'Velocity of Sound used' will be returned as 1403.2m·s
Select the type of shape from; Circle, Rectangle. Triangle.
Set the Width and Height of the shape.
Move the Shape with X, Y position offset from display origin.
Line width.
Enable centre marker (+) for the shape.
. For example, if 1402.1m·s
-1
64
Gemini Imaging Sonar
, starting from
-1
was set in the
-1
step and
-1
-1
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