Furuno CH-250 - Manual (Page 77)

4-9
4.10.2 Finding echo strength (A-scope display)
The A-scope display shows echoes at each transmission with amplitudes and tone proportional
to their intensities on the right 1/4 of the screen. It is useful for estimating the kind of fish school
and bottom composition.
1. Press the [MENU] key.
2. Press to select MENU.
3. Press or to select ES.
4. Press to select A-SCOPE.
5. Press or to open the dialog box.
A-SCOPE
OFF ON
6. Press to select ON.
7. Press the [MENU] key to close the dialog box.
Depth, Water Temp. Display
A-scope display
Echo sounder picture
Figure 4-8 A-scope display