Trawl Echogram Description - Simrad ES80 Reference Manual

Example
in a pelagic echogram
Start Range
In a pelagic echogram, set the
the echogram start from 20 meters below the sea surface (provided that the
transducer offset has been defined). Set
will now show the area from 20 meters below the sea surface, and down to
60 meters below the transducer. Provided that the depth is larger than 60
meters, the bottom contour is not shown.
Related tasks
Selecting which echogram type to use, page 106
Changing the size of the echogram views, page 109
Adjusting the TVG in the Echogram dialog box, page 114
Selecting the horizontal scale in the echograms, page 116
Adding scale labels to the echograms, page 117
Enhancing the bottom contour in the echograms, page 118
Adding vertical marker lines to the echogram, page 119
Adding horizontal depth lines to the echograms, page 120
Adding a variable depth line to the echogram, page 121
Adding automatic trawl lines to the echogram presentation, page 121
Adding manual trawl lines to the echogram presentation, page 122
Related dialog boxes
Echogram dialog box, page 419
Echogram: Echogram page, page 424

Trawl echogram description

The Trawl echogram covers the vertical opening of the trawl with reference to the depth
of the headrope. In addition to the trawl opening, the echogram covers a certain range
over and under the trawl opening. You can select the start range (the depth from which
the echogram starts) and the vertical range (the vertical "length" of the echogram) by
means of the
Start Range
functions are located on the
How to open
To activate Trawl echogram, click in the chosen view
to make it "active". Select
menu. Select the
Echogram
to Trawl.
type
406273/C
Start Range
Range
and settings. Both the
Range
menu.
Main
on the
Echogram Active
tab to open the page. On the
value to 20 meters. This will make
to 40 meters. The echogram
and the
Range
page, set
Echogram
User interface
Start Range
Echogram
265