Lowrance M68C IceMachine, Installation And Operation Instructions Manual

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options. You access the Sonar Menu by pressing the
MENU
key one
time. You run a command by using
↑
or
↓
to highlight the command
and then pressing
ENT
. To clear the menu screen and return to the
Page display, press
EXIT
.
Sonar Page Menu. Most of these functions are discussed in
Sec. 4, Advanced Sonar Operation .
Sonar Menu Commands
The Sonar Menu contains commands for the major sonar features and
options. Most of them are only described in detail in Sec. 4, but Sensitiv-
ity and Auto Sensitivity are important basic functions that are discussed
both here and in the Advanced Sonar section. The other Sonar Menu
commands include:
•
ColorLine

command: separates fish and structure near the bottom
from the actual bottom, and defines bottom composition/hardness.
•
Depth Range command: manually sets the depth range shown on
the sonar chart.
•
Auto Depth Range command: automatically sets the depth range
shown on the sonar chart to always keep the bottom in view.
•
Upper and Lower Limits command: sets the upper and lower depth
limits of the sonar chart. Lets you zoom in on a specific portion of the
water column.
•
Stop Chart command: stops the sonar chart from scrolling. Used
when you want to "freeze" the image for closer study.
•
Chart Speed command: sets the scrolling speed of the sonar chart.
•
Depth Curso
r command: displays a cursor line on the sonar chart
which allows you to accurately measure the depth of a sonar target.