Eagle Electronics Cuda 240 S/GPS - Manual (Page 40)

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Sonar Menu
The Sonar Menu contains commands for the major sonar features and
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:
• Grayline 
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.
• 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 Cursor command: displays a cursor line on the sonar chart
which allows you to accurately measure the depth of a sonar target.