Changing the sounder range – Raymarine DSM300 User Manual
Page 53
Chapter 4: Basic Display Controls
53
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
Fathoms
Meters
Range
Shift
Range
Shift
Range
Shift
5
1
1
1
2
1
10
2
2
1
4
1
15
5
3
1
6
2
20
5
4
1
8
2
30
10
5
1
10
2
40
10
8
2
15
5
50
10
10
2
20
5
60
20
15
5
25
5
80
20
20
5
30
10
100
25
25
5
40
10
150
50
30
10
50
10
200
50
40
10
60
20
250
50
50
10
80
20
300
100
60
20
100
25
400
100
80
20
150
50
600
200
100
25
200
50
800
200
150
50
300
100
1000
250
200
50
400
100