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Garmin Sonar Picture Advance

The Picture Advance setting allows the sonar picture to advance faster by drawing more than one column of data on the screen for each column of sounder data received. This is especially helpful when you are using the sounder in deep water, because the sonar signal takes longer to travel to the water bottom and back to the transducer.

The 1/1 setting draws one column of information on the screen per sounder return. The 2/1 setting draws two columns of information on the screen per sounder return, and so on for the 4/1 and 8/1 settings.


To access this feature on a current GPSMAP1 series device:

With the device powered ON, press the Home button > Select Sonar > Options > Sonar Set up  > Appearance > Pic Advance select a picture advance setting. 


1ECHOMAP and Legacy GPSMAP units see unit specific owner's manual for steps. Finding the Owner's Manual for a Garmin Device