Raymarine DSM250 Owner's Handbook Manual page 87

Chapter 5: Basic Display Controls
Zoom Position Line,
move UP to lower Zoom window
move DOWN to raise window
Figure 5-11: Repositioning the Zoom Window
Selecting Zoom automatically switches OFF Bottom Lock and A-
Scope, if either of these images were being displayed.
If you have split frequency selected, the selected Zoom image is
displayed in both frequency windows.
Note:
1. The vertical Zoom Range Bar shows the range being displayed in
the zoom (left side) window.
2. The size of this zoom range is determined by the zoom factor (2x,
4x or 6x).
3. The position of the zoom range on the scrolling bottom (right
side) window is determined by whether you are using automatic
or manual zoom mode.
AUTO positions the zoom range at the sea bottom.
In MANUAL, the range is positioned by moving the Zoom Posi-
tion Line with the trackpad.
50kHz
AUTO G RZ
ZOOM
x4
FREQUENCY ZOOM
0
55
20
40
60
BTM.LOCK A-SCOPE
D6201-1
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