Raymarine DSM250 Owner's Handbook Manual page 83

Chapter 5: Basic Display Controls
➤
A-SCOPE
A-SCOPE
MODE
1 2 3
➤
A-SCOPE
OFF ON
To display the A-Scope image:
1. Press the A-SCOPE soft key. The display is split vertically, with the
A-Scope image in the right hand window and the scrolling bottom
image in the left hand window.
2. Press the A-SCOPE MODE soft key to select one of the three modes
for A-Scope, as demonstrated in Figure 5-9 :
i. Mode 1, in which the A-Scope image is angled outward as the
signal width (indicated with dotted lines) increases with
depth.
ii. Mode 2, in which the image expands to take up the entire
A-Scope window, providing greater resolution.
iii. Mode 3, in which only the left hand side of the image dis-
played in Mode 2 expands to the entire A-Scope window. This
mode provides the greatest resolution.
3. Press ENTER to accept your selection.
Note: If the Bottom Lock or Zoom image is displayed, selecting A-
Scope automatically switches OFF Bottom Lock and Zoom.
If you have split frequency selected, the A-Scope image is displayed in
both frequency windows.
To remove the A-Scope image:
1. Press the A-SCOPE soft key.
2. Press the A-SCOPE ON OFF soft key to toggle off A-Scope.
3. Press ENTER.
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