Garmin GPSMAP 7215 - Manual (Page 105)

GPSMAP ® 6000/7000 Series Owner’s Manual 99
Sonar
Sonar
When connected to an optional Garmin GSD 22/24/26 sounder module and a transducer, your chartplotter can
be used as a fishfinder. The GSD 22/24/26 connects through the Garmin Marine Network and shares sonar
data with every chartplotter connected to the network. The GSD 22 and the GSD 24/26 models have slightly
different features and options. Any differences are noted in the appropriate sections below.
Sonar Views
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.
You can view the full-screen sonar by selecting Sonar > Full Screen from the Home screen.
Full-screen Sonar View
Suspended target
Bottom
Depth, temperature,
and water speed
GPS speed and
GPS heading
Transducer
frequency
Range
Split-zoom Sonar View
The split-zoom sonar view shows a full-view graph of sonar readings and a magnified portion of that graph on
the same screen. You can view the split-zoom sonar by selecting Sonar > Split Zoom from the Home screen.
Split-zoom Sonar View
Zoom level
Zoom window
Zoomed depth scale
Split-frequency Sonar View
The split-frequency view shows the sonar data of one frequency, such as 200 kHz, on the left side of the screen
and the other frequency, such as 50 kHz, on the right. You can view the split-frequency sonar by selecting
Sonar > Split Frequency from the Home screen. With the GSD 26, you can configure the zoom, depth line,
and a-scope of the two frequencies independently in split-frequency view.
Note: The split-frequency sonar view requires the use of a dual-frequency transducer.