72 GPSMAP 292/298 Owner’s Manual
USING SONAR > SONAR PAGE
USING SONAR
This section covers the additional sonar options for the
GPSMAP 298 when used in conjunction with a transducer and
the GPSMAP 292 when used in conjunction with a GSD 22 or
GSD 21 and tranducer. Read the GSD 22 or GSD 21 Installation
Instructions to properly install the GSD 22, GSD 21, and
transducer.
NOTE: You MUST have a transducer installed and connected
to your GPSMAP 298 to use the sonar features.
NOTE: You MUST have a GSD 22 or GSD 21 and a
transducer installed and connected to your GPSMAP 292 to use
the sonar features.
Sonar Page
The Sonar Page is where your GPSMAP 292/298 becomes a
powerful fishfinder/flasher. To view the Sonar Page, press PAGE
repeatedly until it shows. Fish are shown as colored arches or as
fish icons. 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 80.
Sonar Page
Adjustment
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