Furuno CH-270 Operator's Manual page 81

3. Press ▲ or ▼ to choose TVG DISTANCE and then press ►. The following dialog box
appears.
TVG DISTANCE
GAIN
Hi
Lo
200 m
4. Press ◄ or ► to adjust TVG distance.
TVG
Distance 0
Setting
Meters 3
Feet 10
Passi/braza 2
Fathoms
２
5. Press ▲ or ▼ to close the dialog box and return to the ES menu.
6. To suppress reflections from the sea surface or plankton, choose TVG LEVEL and then
press ►.
7. Press ◄ or ► to adjust TVG LEVEL.
8. Press the [MENU] key to register your selection and close the menu.
4.0
0.5 1.0 1.5 2.0
8 20 40 60
30 70 130 210
5 10 20 40
5 10 20 40
4. ECHO SOUNDER MODE
2.5 3.0 3.5 4.0
100 130 160 200
330 410 520 660
60 80 100 120
60 80 100 110
4.5 5.0 . . . . 10.0
250 320 . . . . 1000
820 1040 3280
150 180 600
140 170 550
4-9