Garmin GPSMAP 182C - Manual (Page 84)

78 GPSMAP 182/182C Owner’s Manual
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This section covers the additional sonar options for the
GPSMAP 182/182C when used in conjunction with a Sounder
Module. Read the Installation Instructions to properly install the
Sounder Module.
NOTE: You MUST have a Sounder Module installed and
connected to your GPSMAP 182/182C to use the sonar
features.
When a Sonar Module, such as the GSD 20, and a transducer are
connected to the GPSMAP 182/182C, the Sonar Page is added to
the page sequence. To view the Sonar Page, press PAGE or QUIT
repeatedly until it appears.
Sonar Page
The Sonar Page is where your GPSMAP 182/182C Sounder
becomes a powerful fishfinder/flasher. Fish appear 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 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.
Sonar Page
Adjustment
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