Chapter 6: Using the Fishfinder
125
Simplifying the bottom image
When you are looking for fish that feed close to the bottom, you can use the Bottom
Lock function to filter out and flatten the bottom structure and display the fish (or any
other objects directly above the bottom) more clearly.
Bottom Lock is selected for individual fishfinder windows and can either replace (ON)
or appear alongside (SPLIT) the standard fishfinder image.
Note:
If the A-Scope or Zoom image was displayed, selecting Bottom Lock automati-
cally switches OFF A-Scope and Zoom.
Adjusting bottom lock range/position
Adjusting the range of the bottom lock image allows you to view more bottom details.
You can also reposition the image on screen to anywhere between the bottom of the
window (0%) and the middle of the window (50%):
BL
B-LOCK RANGE
50ft
BOTTOM SHIFT
14%
BOTTOM LOCK
ON SPLIT OFF
200 kHz: Auto
Gain: Auto High
Depth from the surface
D6672-3
Bottom lock range (distance from bottom)
Bottom
shift
Depth
reading
Bottom lock image
Standard fishfinder image
D8445-1
BOTTOM LOCK...
BOTTOM LOCK
BOTTOM LOCK
ON
SPLIT
SPLIT
B-LOCK RANGE
20ft
Adjust as
required
BOTTOM SHIFT
10%
Содержание E120W
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