Garmin CS 1522 Owner's Manual page 35

No Zoom
Select No Zoom to view the full range from 0 to the set depth range (see 2.3.2).
Auto Zoom
Select Auto Zoom for a magnified view that is locked to the bottom. This is useful for
determining the bottom contour.
1 Press [ZOOM] > Auto Zoom.
2 Press up/down to adjust the Zoom (width of view).
3 Press [SELECT] to confirm the adjustment.
Set Zoom
Select Set Zoom to manually adjust the magnification within the specified range.
1 Press [ZOOM] > Set Zoom.
2 Press up/down to adjust the Zoom (width of view), and left/right to adjust the Depth
(position of view).
3 Press [SELECT] to confirm the adjustment.
2.3 Adjusting the Sonar Display
85�2
58�29
F
10�1
m
h
11�8
v
07:45:55
P
M
Chirp
18
f
t
Gain
Zoomed view
Auto
Medium
85�2
58�29
F
10�1
m
h
11�8
v
07:45:55
P
M
Chirp
18
f
t
Gain
Auto
Medium
Zoomed view
f
t
f
t
0
32
34
36
10
38
40
20
42
44
30
46
48
40
50
52
54
50
56
Zoom
58
60
60
62
70
64
66
80
68
70
72
90
74
76
100
78
102
0
56
10
58
20
60
30
62
40
64
Depth
50
66
60
Zoom
68
70
70 80
90
72
100
74
102
33