How to open
To activate the white line, click in the echogram view to make it active.
Use the shortcut menu or the Active menu to open the Echogram dialog box. Right-click in the view to open the shortcut menu.
Select Echogram on the Active menu. Select the Lines tab to open the page. Select White Line.
Description
The white line will not remove information, it will simply "push" the echo information further down in order to make the bottom
easier to see. You can use the white and the bottom lines simultaneously.
This is a visual enhancement. The choice you make has no effect on the overall performance of the ME70 system.