How to open
To activate the scale lines, 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 Scale Lines.
Description
When enabled, equidistant horizontal scale lines are drawn inside the view in the current foreground colour; black during
day and white during night. A maximum of 10 scale lines can be selected. No scale lines are drawn when the scale line count is set to 0 (zero).
This is a visual enhancement. The choice you make has no effect on the overall performance of the ME70 system.