Furuno 1834C-BB User Manual

4. VIDEO SOUNDER OPERATION 

1.  If not displayed, press the HIDE/SHOW key to show the sounder soft keys. 
2.  Press the B: AUTO/D. BOX soft key. 

AUTO MODE

▲

CRUISING
FISHING
OFF (MANUAL)

▼

3. Use the Trackball or the ENTER knob to select CRUISING or FISHING as appropriate. 
4.  Press the E: RETURN soft key. 

 

Manual operation is useful for observing fish schools and bottom using a fixed gain setting. 
 
The gain, range and range shift functions used together give you the means to select the 
depth you can see on the screen. The basic range can be thought of as providing a 
“window” into the water column and range shifting as moving the “window” to the desired 
depth. 

 

1.  If not displayed, press the HIDE/SHOW key to show the sounder soft keys. 
2.  Press the B: AUTO/D. BOX soft key to show the mode/frequency window. 
3.  Select OFF (MANUAL). 
4.  Press the E: RETURN soft key. 
 

Press the [RANGE +] or [RANGE -] key to select a range. The default ranges in feet, meters, 
fathoms and passi/braza are as below. Note that the range cannot be changed in the 
automatic sounder mode.   

Range 8 

Range 1 

Range 2 

Range 3 

Range 4

Range 5

Range 6

Range 7

ETR-6/10N ETR-30N 

15 ft 

30 ft 

60 ft 

120 ft 

200 ft 

400 ft 

1000 ft 

4000 ft 

4500 ft 

5 m 

10 m 

20 m 

40 m 

80 m 

150 m 

300 m   

1200 m 

1500 m 

3 fa 

5 fa 

10 fa 

20 fa 

40 fa 

80 fa 

150 fa 

650 fa 

900 fa 

3 P/B 

5 P/B 

10 P/B 

30 P/B 

50 P/B 

100 P/B 

200 P/B 

700 P/B 

900 P/B