Kongsberg Simrad SN90 Reference Manual page 40

Simrad SN90 Reference Manual
middle position. If you want to place the transducer in position "Middle 2"
you must use the
dialog box, select
Down
Press
Down
(B)
Symbol
These buttons control the target markers functionality.
Place Marker
This is the same function as the
Place Marker
cursor. One or more markers can be placed in the view to identify specific
echoes. Each marker is shown as a small triangle with or without a short
identifying label. It is positioned based on the two known axes in the view
as well as the tilt and bearing of the current ping.
The marker is stationary. It has a specified range, bearing and depth related
to your own vessel. If the echo moves in the display presentation the marker
will not follow.
Own Ship Marker
This is the same function as
The own ship marker is intended as a tool in a search situation. Place the
marker when your echo sounder confirms that you are passing over a school.
Then, if you should loose the school from view, you will know where to start
looking for it. During a search your SN90 presentation may be cluttered with
multiple markers and echoes. Due to its shape the own ship markers are
easy to see among the other markers.
Note
The marker is stationary. If your vessel moves in the SN90 presentation
the marker will not follow.
Circle Marker
Press
Circle Marker
drawn with the same diameter as your purse. By means of the circle you can
see the size of the school relative to your purse.
Tip
The
Fishing Gear
seine. This function is opened from the
Gear
Press
Gear
provided as a tool to help you plan and shoot the purse seine. The symbol
38
Hull Unit Control
on the top bar.
Hull Unit
to lower the transducer to its bottom position.
allows you to create a marker at the current position of the
Place Own Ship Marker
to place a circular marker in the active view. The circle is
function allows you to define the size of your trawl or purse
to place a gear symbol in the active view. The gear symbol is
dialog box. To open the
option on the shortcut menus.
Place Marker
on the shortcut menu.
menu.
Setup
Hull Unit Control
381294/E