Garmin GPSMAP 751 Owner's Manual

Also see for echoMAP 50s Guide: Installation instructions Reference guide User manual Instructions Template

Contents

Garmin GPSMAP 751 Owner's Manual Manual pdf 19 page image

Viewing Tide Station, Current Station, or CelestialInformation for a Different Date1 Select Nav Info > Tides & Currents.2 Select Tides, Currents, or Celestial.3 Select an option.• To view information for a different date, select ChangeDate > Manual, and enter a date.• To view information for today, select Change Date >Current.• If available, to view information for the day after the dateshown, select Next Day.• If available, to view information for the day before the dateshown, select Previous Day.Viewing Information for a Different Tide or CurrentStation1 Select Nav Info > Tides & Currents.2 Select Tides or Currents.3 Select Nearby Stations.4 Select a station.Viewing Almanac Information from the NavigationChart1 Select Charts > Navigation Chart.2 Select an area on the map.3 Select Information.4 Select Tides, Currents, or Celestial.SonarWhen properly connected to an optional Garmin soundermodule and a transducer, your compatible chartplotter can beused as a fishfinder. There are three different sonar views tohelp you view the fish in the area: a full-screen view, a split-zoom view, and a split frequency view.Full-Screen Sonar ViewThe full-screen sonar view shows a large image of the sonarreadings from a transducer. The range scale along the right sideof the screen shows the depth of detected objects as the screenscrolls from the right to the left.Select Sonar > Full Screen.À Range adjustment controlsÁ Position informationÂ Suspended targets or fishÃ Bottom of the body of waterÄ Range or depth of the waterÅ Transducer frequencySplit-Zoom Sonar ViewThe split-zoom sonar view shows a full-view graph of sonarreadings, and a magnified portion of that graph, on the samescreen.Select Sonar > Split Zoom.Split-Frequency Sonar ViewIn the split-frequency sonar view, one side of the screen showsa full-view graph of high frequency sonar data, and the otherside of the screen shows a full-view graph of lower frequencysonar data.NOTE: The split-frequency sonar view requires the use of adual-frequency transducer.Select Sonar > Split Frequency.Pausing the Sonar DisplayFrom a Sonar view, select Menu > Pause Sonar.Creating a Waypoint on the Sonar Screen1 From a Sonar view, select Menu > Pause Sonar.2 Select the location of the waypoint.3 Select Mark or New Waypoint.Adjusting the Gain on the Sonar ScreenYou can control the sensitivity of the sonar receiver. To seemore detail, increase the gain. If the screen is cluttered,decrease the gain.1 From a Sonar view, select Menu > Gain.2 Select an option:• To increase or decrease the gain manually, select Up orDown.• To allow the chartplotter to adjust the gain automatically,select an automatic option.Adjusting the Range of the Depth ScaleYou can adjust the range of the depth scale that appears on theright side of the screen.1 From a Sonar view, select Menu > Range.2 Select an option:• To allow the chartplotter to adjust the depth scaleautomatically, select Auto.• To increase or decrease the range of the depth scalemanually, select Up or Down.TIP: From the sonar screen, you can select or tomanually adjust the range of the depth scale.Setting the Zoom Level on the Sonar Screen1 From a Sonar view, select Menu > Zoom.2 Select an option:• To zoom in on the sonar data from the bottom depth,select Bottom Lock.• To set the depth range of the magnified area manually,select Set Zoom, select View Up or View Down to setthe depth range of the magnified area, and select ZoomIn or Zoom Out to increase or decrease the magnificationof the magnified area.• To set the depth and zoom automatically, select SetZoom > Auto.Selecting FrequenciesYou can indicate which frequencies appear on the sonar screenwhen using a dual frequency transducer.1 From a Sonar view, select Menu > Frequency.2 Select an option:• To sweep each pulse through a range of frequencies todeliver shallow-water-like target separation at extremelydeep depths and at low frequencies, select Chirp. This isuseful mainly for very deep, offshore waters and whentargeting some species of fish.Sonar 13