Grayline - Lowrance PRO X51 Installation And Operation Instructions Manual

To adjust Sensitivity, press
menu appears. Press
DOWN ARROW
press
NOTE:
If you want to change the sensitivity in Manual
Mode, first turn off Auto Sensitivity: press
until the
Press
DOWN ARROW
clear the menu. To adjust the sensitivity, follow the same
steps used for adjusting sensitivity in auto mode above.
®

Grayline

Grayline
echoes. It "paints" gray on targets that are stronger than a
preset value. This allows you to tell the difference between a
hard and soft bottom. For example, 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.
To change the Grayline level, press
Thin or no Grayline
At left, little Grayline indicates a soft bottom, probably sand or mud.
At right, the wider Grayline indicates a harder, rocky bottom.
Press
UP ARROW
decrease it. The percentage of Grayline in use shows in this menu.
Echoes scrolling onto the screen will also show the effects of the
Grayline change. If you reach the maximum or minimum level, a tone
sounds alerting you to the limits. Press
to decrease it. When it's set at the desired level,
to clear the menu.
PWR
S A
ENSITIVITY UTOMATIC
to select
®
lets you distinguish between strong and weak
®
to increase the level or press
until the
MENU
to increase the sensitivity,
UP ARROW
menu appears.
/M
ANUAL
, then press
M
ANUAL
until the
MENU
to clear the menu.
PWR
26
S
ENSITIVITY
MENU
to
PWR
menu appears.
G
RAYLINE
Wider
Grayline
DOWN ARROW
A
DJUSTMENT
®
to