Garmin 521s Guía Del Usuario

Using Sonar

If you are using a temperature-capable transducer, the Temp Log 

screen keeps a graphic log of temperature readings over time. The 

current temperature and the depth are shown in the top-left corner.

  From the Home screen, select 

 > 

.

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 

 > 

.

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.
Surface Noise—show or hide the sonar returns near the surface of 

the water. Hide surface noise to help reduce clutter.
depth Line—quickly reference a specific depth (Show or Hide). To 

set the depth of the reference line, select 

, and then press up or 

down on the 

.

a-Scope—display a vertical flasher along the right side of the 

screen.