Chart Speed - Eagle FishEasy 245DS Portable Installation And Operation Instructions Manual

Thin or no Grayline
A small amount of Grayline indicates a soft bottom (left), probably
sand or mud. More Grayline indicates a harder, rocky bottom (right).

Chart Speed

The speed at which echoes scroll across the screen is called the chart
speed. The default for this unit is "max" (100 percent). We recommend
you leave the scroll speed setting there for most all fishing conditions.
You, however, might consider experimenting with chart speed when
you are stationary or drifting very slowly.

Chart Speed scroll bar.
45
Wider

Grayline