Changing The Sounder Range - Raymarine DSM300 User Manual

Chapter 4: Basic Display Controls

Changing the Sounder Range

By default, the sounder automatically adjusts the display range, selecting the
shallowest range that keeps the bottom in the lower half of the display window.
Shift is disabled (the value is ignored) when auto-range is selected.
Alternatively, the RANGE key lets you select the maximum depth displayed on
the scrolling bottom and A-Scope displays. You can also set the shift value to
move the image window up or down within the current range.
The following range/shift values are available:
Table 4-2: Range and Shift Values
Feet
Range
5
10
15
20
30
40
50
60
80
100
150
200
250
300
400
600
800
1000
Fathoms
Shift Range
1 1
2 2
5 3
5 4
10 5
10 8
10 10
20 15
20 20
25 25
50 30
50 40
50 50
100 60
100 80
200 100
200 150
250 200
Meters
Shift Range
1 2
1 4
1 6
1 8
1 10
2 15
2 20
5 25
5 30
5 40
10 50
10 60
10 80
20 100
20 150
25 200
50 300
50 400
Shift
1
1
2
2
2
5
5
5
10
10
10
20
20
25
50
50
100
100
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