Garmin GPSMAP 198C Sounder - Manual (Page 84)

78 GPSMAP 198C Sounder Owner’s Manual
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This section covers the additional sonar options for the
GPSMAP 198C Sounder when used in conjunction with a
transducer. Read the Installation Instructions to properly install the
transducer.
NOTE: You MUST have a transducer installed and connected
to your GPSMAP 198C Sounder to use the sonar features.
Sonar Page
The Sonar Page is where your GPSMAP 198C Sounder becomes a
powerful fishfinder/flasher. To view the Sonar Page, press PAGE or
QUIT repeatedly until it shows. Fish are shown as colored arches
or as fish icons. Both fish icons and arches appear in three different
sizes. Thermoclines are shown as shades of blue. The area of
strongest sonar return shows 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 screen, see page 89 .
Sonar Page
Adjustment
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