Garmin 188c Benutzerhandbuch

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This section covers the additional sonar options for the GPSMAP 

188/188C Sounder when used in conjunction with a transducer. 

Read the Transducer’s Installation Instructions to properly install 

the transducer.  

 

The Sonar Page is where your GPSMAP 188/188C Sounder 

becomes a powerful fishfinder/flasher. To view the Sonar Page, 

press PAGE or QUIT repeatedly until it appears. Fish are 

displayed as colored arches or as fish icons. Both fish icons and 

arches are displayed in three different sizes. Thermoclines are 

shown as shades of blue. The area of strongest sonar return is 

displayed as solid white (if Whiteline is active. Typically, the 

bottom is the primary whiteline. A thin whiteline indicates a soft 

bottom and a thick whiteline follows the contour of the bottom 

and show any objects of reasonable size. For more information on 

understanding sonar and the display, see 

.

Adjustment 

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