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Depth information
Suspended targets or fish
Bottom of the body of water
DownVü Sonar View
NOTE: Not all models support DownVü sonar technology and
transducers.
NOTE: To receive DownVü scanning sonar, you need a
compatible chartplotter or fishfinder and a compatible
transducer.
DownVü high-frequency sonar provides a clearer picture below
the boat, providing a more detailed representation of structures
the boat is passing over.
Traditional transducers emit a conical beam. The DownVü
scanning sonar technology emits a narrow beam, similar to the
shape of the beam in a copying machine. This beam provides a
clearer, picture-like image of what is beneath the boat.
SideVü Sonar View
NOTE: Not all models support SideVü sonar and scanning
transducers.
NOTE: To receive SideVü scanning sonar, you need a
compatible chartplotter and a compatible transducer.
SideVü scanning sonar technology shows you a picture of what
lies to the sides of the boat. You can use this as a search tool to
find structures and fish.
Left side of the boat
Right side of the boat
The transducer on your vessel
Trees
Old tires
Logs
Distance from the side of the boat
SideVü/DownVü Scanning Technology
Instead of a more common conical beam, the SideVü/DownVü
transducer uses a flat beam to scan the water and ground to the
sides of your boat.
Sonar
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.
Split-Frequency Sonar View
In the split-frequency sonar view, one side of the screen shows
a full-view graph of high frequency sonar data, and the other
side of the screen shows a full-view graph of lower frequency
sonar data.
NOTE: The split-frequency sonar view requires the use of a
dual-frequency transducer.
Changing the Sonar View
1
From a combination screen or SmartMode layout with sonar,
select the window to change.
2
Select Menu > Change Sonar.
3
Select a sonar view.
Creating a Waypoint on the Sonar Screen
1
From a sonar view, select a location.
2
Select New Wpt.
3
If necessary, edit the waypoint information.
Pausing the Sonar Display
From a sonar view, select .
Viewing Sonar History
You can scroll the sonar display to view historical sonar data.
1
From a sonar view, select Menu > Sonar Menu > .
2
Drag the screen.
Sonar Sharing
This feature may not be available on all chartplotter models.
You can view the sonar data from all compatible sources on the
Garmin Marine Network. You can view sonar data from a
compatible external sonar module, such as a GCV
module. In addition, you can view the sonar data from other
chartplotters that have a built-in sonar module.
Each chartplotter on the network can display sonar data from
every compatible sonar module and transducer on the network,
no matter where the chartplotters and transducers are mounted
on your boat. For example, from a transducer with DownVü
mounted at the back of the boat, you can view the sonar data
using the GPSMAP 7407xsv mounted at the front of your boat.
Chartplotters can display only compatible types of sonar. For
example, GPSMAP 547 models can display traditional and
DownVü data, but not SideVü data.
When sharing sonar data, the values of some sonar settings,
such as Range and Gain, are synchronized across the devices
on the network. The values of other sonar settings, such as the
sonar
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