Furuno 1834C-BB Manual Do Utilizador

4. VIDEO SOUNDER OPERATION 

The white marker functions to display a particular echo color in white. For example, you 
may want to display the bottom echo in white to discriminate fish echoes near the bottom.   
 
1. Press the MENU key. 
2.  Press the A: SOUNDER MENU soft key. 
3.  Select WHITE MARKER, then press the A: EDIT soft key to open the white marker 

window. 

WHITE MARKER

    ▲

  OFF

    ▼

4. Use the Trackball

 

to select the color to display in white. As you use the Trackball, the 

number in the white marker window changes, the white marker on the echo strength bar 
shifts and the selected echo color is displayed in white.   

←

White marker shows 
color currently 
displayed in white.

5.  Press the E: RETURN soft key followed by the MENU key to close the menu. 
 
To turn the white marker function off, display “OFF” in the white marker window. 
 
 

The picture advance speed determines how quickly the vertical scan lines run across the 
screen. When selecting a picture advance speed, keep in mind that a fast advance speed 
will expand the size of the fish school horizontally on the screen and a slow advance speed 
will contract it.   
 
The advancement speed may be set independent of or synchronized with ship’s speed. 
 

1. Press the MENU key. 
2.  Press the A: SOUNDER MENU soft key. 
3.  Select PICTURE ADVANCE, and press the A: EDIT soft key to open the picture 

advance window.