Humminbird LCR 400 ID Operation Manual page 20

USING THE LCR400ID
OPERATING THE LCR400ID
DEPTH RANGE
7. Setting Depth Range;
Factory Setting: On (Automatic)
When you turn the LCR 400ID on, it finds the bottom,
sets the ideal depth range, and automatically adjusts
the depth range (to as much as 480') as the depth
changes. In this "Auto Depth Range" mode, the bottom
is blacked-in for easy-to-understand readings.
If you prefer, you can turn Auto Depth Range off.
Select RANGE, press ON-OFF, and adjust the Depth
Range with the Up or Down arrow key. You can set
the Depth Range up to 600'.
In this "Manual Depth Range" mode, the bottom is not
blacked in. This lets you see a "second return," which
is preferred by some fishermen because the width of
the second echo can indicate bottom hardness.
FISH ID
8. Selecting Fish ID;
Factory Setting: On (Automatic)
When you turn the LCR 400ID on, the unit
automatically sets Fish ID to the On position. To turn
the ID feature off, and display fish with pixels instead
of the ID icons, press the ON-OFF button while within
the Fish ID menu. Pressing the ON-OFF button again
reactivates the ID function.