Pausing the Sonar Display

From a Sonar view, select Menu > Sonar Menu > Pause Sonar.

Viewing Sonar History

You can scroll the sonar display to view historical sonar data.

1From a sonar view, select Menu > Sonar Menu > Pause Sonar.

2Drag the screen or use the arrow keys.

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™ sonar 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 the GPSMAP 8212 mounted at the back of the boat, you can view the sonar data from an echoMAP™ 70dv mounted at the front of your boat.

Chartplotters can only display sonar types they are compatible with. For example, the echoMAP 50dv and GPSMAP 547 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 Appearance settings, are not synchronized and should be configured on each individual device. In addition, the scroll rates of the various traditional and DownVü 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.

Selecting a Sonar Source

This feature may not be available with all models.

When you are using more than one sonar data source for a particular sonar view, you can select the source to use for that sonar view. For example, if you have two sources for DownVü, you can select the source to use from the DownVü sonar view.

1Open the sonar view for which you will change the source.

2 Select Menu > Sonar Menu > Sonar Setup > Source. 3 Select the source for this sonar view.

Renaming a Sonar Source

You can rename a sonar source to easily identify that source. For example, you use "Bow" as the name of the transducer on the bow of your boat.

The source is renamed for the present view only. For example, to rename the DownVü sonar source, you must open the DownVü sonar view.

1From the sonar view, select Menu > Sonar Menu > Sonar Setup > Source > Rename Sonar Source.

2Enter the name.

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 DownVü and SideVü/DownVü 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.

1From a sonar view, select Menu > Sonar 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.

Adjusting the Color Intensity

You can adjust the intensity of colors and highlight areas of interest on the sonar screen by adjusting the color gain for traditional transducers or the contrast for DownVü and SideVü/ DownVü transducers. This setting works best after you have adjusted the level of detail shown on the screen using the gain or brightness settings.

If you want to highlight smaller fish targets or create a higher intensity display of a target, you can increase the color gain or contrast setting. This causes a loss in the differentiation of the high intensity returns at the bottom. If you want to reduce the intensity of the return, you can reduce the color gain or contrast.

1From a sonar view, select Menu > Sonar Menu.

2 Select an option:

•While in the DownVü or SideVü sonar view, select Contrast.

•While in another sonar view, select Sonar Setup > Advanced > Color Gain.

3Select an option:

•To increase or decrease the color intensity manually, select Up or Down.

•To use the default setting, select Default.

Adjusting the Range of the Depth or Width Scale

You can adjust the range of the depth scale traditional and DownVü sonar views and the range of the width scale for the SideVü sonar view.

Allowing the device to adjust the range automatically keeps the bottom within the lower or outer third of the sonar screen, and can be useful for tracking a bottom that has minimal or moderate terrain changes.

Manually adjusting the range enables you to view a specified range, which can be useful for tracking a bottom that has large terrain changes, such as a drop-offs or cliffs. The bottom can appear on the screen as long as it appears within the range you have set.

1From a sonar view, select Menu > Sonar Menu > Range.

2 Select an option:

•To allow the chartplotter to adjust the range automatically, select Auto.

•To increase or decrease the range manually, select Up or Down.

TIP: From the sonar screen, you can select or to manually adjust the range.

Setting the Zoom Level on the Sonar Screen

1From a sonar view, select Menu > Sonar Menu > Zoom.

2 Select an option:

•To zoom in on the sonar data from the bottom depth, select Bottom Lock.

Sonar

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