Garmin GPSMAP 4210 Owner's Manual

Also see for GPSMAP 4000 Series: Configuration guide Quick reference guide Owner's manual Owner's manual Template manual

Contents

Garmin GPSMAP 4210 Owner's Manual Manual pdf 50 page image

4 GPSMAP 4000 Series Owner’s ManualuSInG SonarUSinGS onarSetting Up SonarUse the Sonar Setup screen to define and adjust settings universal to all sonar screens.From the Home screen, select Sonar > Sonar Setup.Color Scheme—choose white (black, if using night mode colors) or blue. This affects thebackground on all sonar screens, but does not change the Temp Log screen.Fish Symbols—sets how the sonar interprets suspended targets.The unit does not interpret the sonar return data (default).Suspended targets appear as symbols. Background sonar information appears, making thedistinction between fish and structure easier.Suspended targets appear as symbols with background information shown. The targetdepth of each symbol is also indicated.Suspended targets appear as symbols. No background information appears.Suspended targets appear as symbols with no background information shown. The targetdepth of each symbol is indicated.Scroll Speed—adjusts the rate at which the sonar scrolls from right to left (Ultrascroll, Fast,Medium, or Slow). If you are using a speed-capable transducer, select Auto to have the scroll speedautomatically adjust to the water speed of your boat.Surface Noise—shows or hides the sonar returns near the surface of the water. Hide surface noise tohelp reduce clutter.Whiteline—highlights the strongest signal from the bottom to help identify its hardness or softness.Off—(default) Whiteline is disabled.High—the most sensitive setting. Almost all strong returns are highlighted in white.Medium—many strong returns are highlighted in white.Low—the least sensitive setting. Only the strongest returns are highlighted in white.Overlay Numbers—shows or hides water temperature, water speed (if your transducer is capable),and navigation. If Auto is selected and the transducer is capable, the data is shown.Advanced Sonar SettingsTo adjust advanced sonar settings, press MENU while viewing a sonar screen.Range—adjusts the range of the depth scale on the right side of the screen. Select Auto or, to adjustmanually, Up or Down.Gain—controls the sensitivity of the sonar receiver. Select Auto or, to adjust manually, select Up orDown. To see more detail, increase the gain. If the screen is cluttered, decrease the gain.Frequency—selects how the frequencies appear on screen (200kHz, 50kHz, or Dual) when using adual frequency transducer.Zoom—zooms in to a section of the Full screen. The zoom is off (No Zoom) by default. Three otheroptions are available:2x Zoom—twice the magnification. Select Up, Down, or Auto to set the depth range of the•••••