Grayline - Lowrance M52 S/GPS Installation And Operation Instructions Manual

Symbols with
FishTrack depths
Sonar Features menu with Fish I.D. Depths selected. When the check
box to the left is checked, the feature is on. At right, Sonar Page show-
ing Fish I.D. symbols and FishTrack depths turned on.


Grayline

Grayline lets you distinguish between strong and weak echoes. It
"paints" gray on targets that are stronger than a preset value. This al-
lows you to tell the difference between a hard and soft bottom. For ex-
ample, a soft, muddy or weedy bottom returns a weaker signal which is
shown with a narrow or no gray line. a hard bottom returns a strong
signal which causes a wide gray line.
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 on the bottom, or fish from structure.
Grayline is adjustable. Experiment with your unit to find the Grayline
setting that's best for you.
At left, Sonar Page menu with Grayline command selected.
At right, the Grayline control bar.
53