Eagle Electronics SeaFinder 250 DF User Manual

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Grayline scroll bar.

If you have two signals of equal size, one with gray and the other with-

out, then the target with gray is the stronger signal. This helps distin-

guish weeds from trees and fish from structure.

A small amount of Grayline indicates a soft bottom (left), probably

sand or mud. More Grayline indicates a harder, rocky bottom (right).

Grayline is adjustable. Since Grayline shows the difference between

strong and weak signals, adjusting the sensitivity may also require a

different Grayline level.

Wider
Grayline

Thin or no Grayline