Eagle Electronics Cuda 128 Portable - Manual (Page 42)

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adjusting a car's speed with the accelerator pedal while cruise control is
on. You can tell the car to run faster, but when you let off the gas the
cruise control
automatically keeps you from running slower than the
minimum speed setting.
In your unit, auto mode will let you increase sensitivity to 100 percent, but
the unit will
limit your minimum setting. This prevents you from turning
sensitivity down too low to allow automatic bottom tracking. When you
change the setting with auto turned on, the unit will continue to track the
bottom and make minor adjustments to the sensitivity level, with a bias
toward the setting you selected.
Adjusting sensitivity in Manual Sensitivity Mode is similar to driving a
car without cruise control — you have
complete manual control of the
car's speed. In your unit, manual mode allows you to set sensitivity at
100 percent (maximum) or zero percent (minimum.) Depending on
water and bottom conditions, the bottom signal may completely
disappear from the screen when you reduce sensitivity to about 45
percent or less!
Try adjusting sensitivity in both auto and manual modes to see how
they work.