Chapter 3: Using the Sounder Module 35
Note:
If the A-Scope or Zoom image was displayed, selecting Bottom Lock automatically
switches OFF A-Scope and Zoom.
To display or remove the Bottom Lock image:
1. Press BOTTOM LOCK. The Bottom Lock soft keys are displayed.
2. Toggle to:
• BOTTOM LOCK ON to replace the standard fishfinder image with the bot-
tom lock image.
• BOTTOM LOCK SPLIT to display both the standard fishfinder and bottom
lock image in a single window.
• BOTTOM LOCK OFF to return to the standard fishfinder image.
3. To adjust the range of the Bottom Lock image, press B-LOCK RANGE and then
use the rotary knob to adjust the range.
4. To re-position the Bottom Lock image to view more bottom details, press BOT-
TOM SHIFT and then use the rotary knob to adjust the shift between the bot-
tom of the window (0%) and the middle of the window (50%).
5. Press CANCEL or ENTER to return to the default display.
B-LOCK RANGE
30ft
BOTTOM SHIFT
20%
B-LOCK RANGE
30ft
BOTTOM SHIFT
20%
BOTTOM LOCK
ON SPLIT OFF
BOTTOM LOCK
ON SPLIT OFF
D8218-1
20
0
40
49 8
10
20
0
60
200 kHz
30
81254.book Page 35 Monday, March 6, 2006 2:29 PM
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