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Adjusting sensitivity in Auto Sensitivity Mode is similar to manually
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 the 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 auto-
matic bottom tracking. When you change the setting with auto turned
on, the unit will continue to track the bottom and make minor adjust-
ments to the sensitivity level, with a bias toward the setting you se-
lected.
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 the unit, manual mode allows you to set sensitivity at
100 percent (maximum) or zero percent (minimum.)
Depending on water conditions, the bottom signal may completely dis-
appear from the screen when you reduce sensitivity to about 50 percent
or less.
Try adjusting sensitivity in both auto and manual modes to see how
they work.
To adjust sensitivity:
1. Press
MENU|ENT.
2. The Sensitivity Control Bar appears. Press ↓ to decrease sensitivity;
press ↑ to increase sensitivity. When it's set at the desired level, press
EXIT. When you reach the maximum or minimum limit, a tone sounds.