Furuno CH-250 - Manual (Page 78)

4-10
4.11 Echo Sounder Menu Overview
This section presents an overview of the items on the ES menu.
1. Press the [MENU] key to open the menu.
2. Press to select MENU and then press or to select the ES menu.
TVG LEVEL
4.0
4.0
TVG DISTANCE
GAIN ADJUST 0
RES. COLOR LOG
CLUTTER 0
: SELECT : CHANGE MENU: END
MENU COM1 HORZ VERT ES PRESET SYS COM2
A-SCOPE OFF
Figure 4-9 ES menu
3. Press or to select item desired.
4. Press to show corresponding dialog box.
5. Press or to select option desired.
6. Press the [MENU] key to register your selection and close the menu.
4.11.1 Echo sounder menu description
TVG LEVEL: Compensates for propagation loss of sound in water. See paragraph 4.10.1 on
page 4-7. Default setting is 4.0.
TVG DISTANCE: As above. Default setting is 4.0.
GAIN ADJUST: Compensates for too weak or too strong echo level. Adjust the gain on the echo
sounder mode when it is not the same as that on the horizontal and vertical fan modes. Setting
range: -10 to +10. Default setting is 0.