Garmin 556 Manuale Utente

Using Sonar

Press 

 to set the duration and the scale for the log.

The temperature appears along the right side, and the time 

elapsed appears along the bottom. The graph scrolls to the left as 

information is received.

Use the Sonar Setup screen to define and adjust settings universal to 

all sonar screens.

  From the Home screen, select 

 > 

.

fish Symbols—set how the sonar interprets suspended targets.

The unit does not interpret the sonar return data (default). 

 

Suspended targets appear as symbols. Background sonar 

information appears, making the distinction between fish 

and structure easier.
Suspended targets appear as symbols with background 

information shown. The target depth of each symbol is also 

displayed.
Suspended targets appear as symbols. No background 

information appears. 

 

Suspended targets appear as symbols with no background 

information shown. The target depth of each symbol is 

displayed.

Scroll Speed—adjust the rate at which the sonar scrolls from 

right to left (Ultrascroll

™

, fast, Medium, or Slow). If using a 

speed-capable transducer, select 

 to have the scroll speed 

automatically adjust to the water speed of your boat.