Garmin 7212 User Manual

Page of 132
GPSMAP
®
 6000/7000 Series Owner’s Manual 
Sonar 
Sonar
When connected to an optional Garmin GSD 22 sounder module and a transducer, your chartplotter 
can be used as a fishfinder. The GSD 22 connects through the Garmin Marine Network and shares 
sonar data with every chartplotter connected to the network.
Sonar Views
The chartplotter shows sonar data using three different views: a full-screen view, a split-zoom view, 
and a split-frequency view.
Full-screen Sonar View
The full-screen sonar view shows a full-view graph of sonar readings from a transducer. The range 
scale along the right side of the screen shows the depth of detected objects as the screen scrolls from 
the right to the left.
From the Home screen, select 
Sonar
 > 
Full Screen
Full-screen Sonar View
Suspended 
target
Bottom
Depth, temperature, 
and water speed
GPS speed and 
GPS heading
Transducer 
frequency
Range
Setting the Zoom Level on the Full-screen View
You can zoom in to a section of the full-screen sonar view.
1.  From the Home screen, select 
Sonar
 > 
Full Screen
 > 
Menu
 > 
Zoom
.
2.  Complete an action:
Select 
2x Zoom Auto Lock
 to zoom in on the sonar data at two-times magnification. 
Select 
4x Zoom Auto Lock
 to zoom in on the sonar data at four-times magnification. 
Select 
Adjustable Zoom
 to set the depth range of the magnified area manually. Select 
Up
 or 
Down 
to set the depth range of the magnified area. Select 
Zoom In
 or 
Zoom out
 to increase 
or decrease the magnification of the magnified area. Select 
Done
.
Select 
Bottom Lock
 to zoom in on sonar data from the bottom depth, and select 
Up
 or 
Down 
to set the depth range of the magnified area. Select 
Done
.