Lowrance m68c icemachine 操作ガイド

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At left, Sonar Page menu with Depth Range command selected. At
right, the Depth Range Control Scale.
2. The Depth Range Control Scale appears. Press 
↑ or ↓ to select a dif-
ferent depth range. A dark bar highlights the selected range. Range
numbers in gray cannot be selected.
3. When the new range is selected, press 
EXIT
 to clear the menu.
Depth Range - Manual
You have complete control over the range when the unit is in the man-
ual mode. There are 12 depth ranges, from 5 feet to 800 feet.
To switch to Manual Depth Range:
1. First, turn off automatic depth range. From the Sonar Page, press
MENU
|
↓ to 
A
UTO 
D
EPTH 
R
ANGE
|
ENT
.
2. Press 
↑ to 
D
EPTH 
R
ANGE
|
ENT
 and the Depth Range Control Scale appears.
3. Press 
↓ or ↑ to select a different depth range. A horizontal dark bar
highlights the selected range.
4. When the new range is selected, press 
EXIT
 to clear the menu.
To turn Auto Depth Range on again:
1. From the Sonar Page, press 
MENU
|
↓ to 
A
UTO 
D
EPTH 
R
ANGE
|
ENT
|
EXIT
.
NOTE:
The sonar's depth capability depends on the transducer installa-
tion, water and bottom conditions, and other factors.
Depth Range - Upper and Lower Limits
Virtually any segment of the water column can be displayed by using
the upper and lower limit feature. This lets you pick the shallow and
deep depth range limits that are shown on the screen, provided there is
at least 5 feet between the upper and lower limit you select. For exam-
ple, a range from 12 feet to 34 feet could be used.