3. VERTICAL MODE
3-8
TVG distance and setting
This sonar has three TVG functions, Near, Medium and Far, and they mainly compen-
sate for propagation loss on short, middle and long ranges respectively, centered at
the ranges shown below. The higher the TVG setting the greater the amplification of
echoes.
1. Press the
MENU/ESC
key to show the main menu.
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 [Near], [Middle] or [Far] as appropriate then push the left-click button to
change the setting.
Near: Setting range, 50 - 150 m, 10 m increments. Middle: Setting range, 300 -
500 m, 20 m increments Far: Setting range, 600 - 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 follows.
8. Select [TVG-Near], [TVG-Medium] 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.
Approx. 100 m
Near
Far
Med
Approx. 400 m
Approx. 800 m
Current settings
Select item with trackball;
push left-click button to adjust.
Summary of Contents for FSV85MK2
Page 12: ...SYSTEM CONFIGURATION xii This page is intentionally left blank ...
Page 74: ...2 HORIZONTAL MODE 2 44 This page is intentionally left blank ...
Page 128: ...4 SLANT MODE 4 36 This page is intentionally left blank ...
Page 132: ...5 NUMERIC GRAPHIC DATA DISPLAY 5 4 This page is intentionally left blank ...
Page 188: ...9 MAINTENANCE 9 24 This page is intentionally left blank ...
Page 199: ......