GPSMAP® 6000/7000 Series Owner’s Manual SonarSonarWhen connected to an optional Garmin GSD 22 sounder module and a transducer, your chartplottercan be used as a fishfinder. The GSD 22 connects through the Garmin Marine Network and sharessonar data with every chartplotter connected to the network.Sonar ViewsThe chartplotter shows sonar data using three different views: a full-screen view, a split-zoom view,and a split-frequency view.Full-screen Sonar ViewThe full-screen sonar view shows a full-view graph of sonar readings from a transducer. The rangescale along the right side of the screen shows the depth of detected objects as the screen scrolls fromthe right to the left.From the Home screen, select Sonar > Full Screen.Full-screen Sonar ViewSuspendedtargetBottomDepth, temperature,and water speedGPS speed andGPS headingTransducerfrequencyRangeSetting the Zoom Level on the Full-screen ViewYou 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 orDown to set the depth range of the magnified area. Select Zoom In or Zoom out to increaseor 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 Downto set the depth range of the magnified area. Select Done.••••