Creating A Waypoint On The Sonar Screen; Pausing The Sonar Display; Viewing Sonar History; Sonar Sharing - Garmin GPSMAP 7400 Series Owner's Manual

Creating a Waypoint on the Sonar Screen

1 From a sonar view, drag the screen or select
2 Select a location.
3 Select .
4 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.
NOTE: Not all transducers save historical sonar data.
1 From a sonar view, drag the screen to the right.
2 Select Back to exit history.

Sonar Sharing

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
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 one GPSMAP 7410xsv device mounted at the back of the boat, you can view the sonar data from another
GPSMAP device and Garmin ClearVü transducer mounted at the front of your boat.
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 Appearance settings, are not
synchronized and should be configured on each individual device. In addition, the scroll rates of the various
traditional and Garmin ClearVü sonar views are synchronized to make the split views more cohesive.
NOTE: Using multiple transducers simultaneously can create cross talk, which can be removed by adjusting the
Interference sonar setting.

Adjusting the Level of Detail

You can control the level of detail and noise shown on the sonar screen either by adjusting the gain for
traditional transducers or by adjusting the brightness for Garmin ClearVü transducers.
If you want to see the highest intensity signal returns on the screen, you can lower the gain or brightness to
remove lower intensity returns and noise. If you want to see all return information, you can increase the gain or
brightness to see more information on the screen. This also increases noise, and can make it more difficult to
recognize actual returns.
1 From a sonar view, select Menu.
2 Select Gain or Brightness.
3 Select an option:
• To increase or decrease the gain or brightness manually, select Up or Down.
• To allow the chartplotter to adjust the gain or brightness automatically, select an automatic option.
Sonar Fishfinder
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sonar module. In addition, you can view the
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