14 Adding manual trawl lines to the echogram presentation
When you use a trawl, the EK80 can draw the upper and lower trawl lines in the echogram.
Context
A Simrad ITI (Integrated Trawl Instrumentation) system can be connected to the EK80 system. Communication with the ITI system is based on both NMEA and proprietary telegrams, and all necessary parameters are automatically
defined. The information can be used to draw the upper and/or lower trawl lines in the echogram.
If another trawl or catch monitoring system is used, and this system does not provide the trawl opening and/or trawl distance
automatically, the values must be entered manually.
Procedure
| 1 | Open the Setup menu. |
| 2 | On the Setup menu, select Installation. Observe that the Installation dialog box opens. This dialog box contains a number of pages selected from the menu on the left side.
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| 3 | On the left side of the Installation dialog box, select Trawl to open the page. |
| 4 | Use the spin box to provide the height of the trawl opening. If a keyboard is connected to your computer, you can click the spin box and type a new value.
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| 5 | Use the spin box to provide the distance from the vessel to the trawl. |
| 6 | Select Apply and then Close to save all the parameters and close the Installation dialog box. |
Further requirements
In order to see the trawl lines in the echogram presentation, they must be enabled in the Echogram dialog box.