Furuno FSV-35, Operator'S Manual

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3. VERTICAL MODE
3-8
2. Select [Gain Setting] then push the left-click button.
3. Press the H/V/S key to select the [V] tab.
4. Select [TVG Distance] then push the left-click button.
5. Select [Changeable] then push the left-click button.
6. Select or ; for [Near], [Med] or [Far] as appropriate then push the left-click
button to change the setting.
Near: Setting range, 50 to 150 m, 10 m increments. Med: Setting range, 300 to
500 m, 20 m increments Far: Setting range, 600 to 1000 m, 40 m increments
7. Select [Quit] on the setting box then push the left-click button.
Adjust the TVG level for selected TVG distance as below.
8. Select [TVG-Near], [TVG-Med] or [TVG-Far] as appropriate then push the left-
click button.
9. Select or as appropriate then push the left-click button to change the setting.
The setting range is -5 to 5. The higher the setting, the higher the gain. For strong
echoes such as sea surface reflections or plankton layer lower the setting by 1 or
2.
10. Select [Quit] on the setting box then push the left-click button to close the box.
11. Long-press the MENU/ESC key to close all menus.
Current settings
Select item with trackball;
push left-click button to adjust.