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 24 page image

Rings: Shows the range rings that help you to visualizedistances on the radar screen.Nav. Lines: Shows the navigation lines that indicate the courseyou have set using Route To, Guide To, or Go To.Waypoints: Shows waypoints on the radar screen.Front-of-Boat OffsetThe front-of-boat offset compensates for the physical location ofthe radar scanner on a boat, if the radar scanner does not alignwith the bow-stern axis.Measuring the Potential Front-of-Boat OffsetThe front-of-boat offset compensates for the physical location ofthe radar scanner on a boat, if the radar scanner does not alignwith the bow-stern axis.1 Using a magnetic compass, take an optical bearing of astationary target located within viewable range.2 Measure the target bearing on the radar.3 If the bearing deviation is more than +/- 1°, set the front-of-boat offset.Setting the Front-of-Boat OffsetBefore you can set the front-of-boat offset, you must measurethe potential front-of-boat offset.The front-of-boat offset setting configured for use in one radarmode is applied to every other radar mode and to the Radaroverlay.1 From a Radar screen or the Radar overlay, select Menu >Radar Setup > Front of Boat.2 Select Up or Down to adjust the offset.Digital Selective CallingNetworked Chartplotter and VHF RadioFunctionalityIf you have a NMEA 0183 VHF radio or a NMEA 2000 VHFradio connected to your chartplotter, these features areenabled.• The chartplotter can transfer your GPS position to your radio.If your radio is capable, GPS position information istransmitted with DSC calls.• The chartplotter can receive digital selective calling (DSC)distress and position information from the radio.• The chartplotter can track the positions of vessels sendingposition reports.If you have a Garmin NMEA 2000 VHF radio connected to yourchartplotter, these features are also enabled.• The chartplotter allows you to quickly set up and sendindividual routine call details to your Garmin VHF radio.• When you initiate a man-overboard distress call from yourradio, the chartplotter shows the man-overboard screen andprompts you to navigate to the man-overboard point.• When you initiate a man-overboard distress call from yourchartplotter, the radio shows the Distress Call page to initiatea man-overboard distress call.Turning On DSCSelect Settings > Other Vessels > DSC.DSC ListThe DSC list is a log of the most recent DSC calls and otherDSC contacts you have entered. The DSC list can contain up to100 entries. The DSC list shows the most recent call from aboat. If a second call is received from the same boat, it replacesthe first call in the call list.Viewing the DSC ListBefore you can view the DSC list, the chartplotter must beconnected to a VHF radio that supports DSC.Select Nav Info > Other Vessels > DSC List.Adding a DSC ContactYou can add a vessel to your DSC list. You can make calls to aDSC contact from the chartplotter.1 Select Nav Info > Other Vessels > DSC List > AddContact.2 Enter the Maritime Mobile Service Identity (MMSI) of thevessel.3 Enter the name of the vessel.Incoming Distress CallsIf your Garmin chartplotter and VHF radio are connected usingNMEA 0183 or NMEA 2000, your chartplotter alerts you whenyour VHF radio receives a DSC distress call. If positioninformation was sent with the distress call, that information isalso available and recorded with the call.designates a distress call in the DSC list and marks theposition of the vessel on the Navigation chart at the time of theDSC distress call.Navigating to a Vessel in Distressdesignates a distress call in the DSC list and marks theposition of a vessel on the Navigation chart at the time of theDSC distress call.1 Select Nav Info > Other Vessels > DSC List.2 Select a position-report call.3 Select Navigate To.4 Select Go To or Route To.Man-Overboard Distress Calls Initiated from a VHFRadioWhen your chartplotter is connected to a Garmin NMEA 2000compatible radio, and you initiate a man-overboard DSCdistress call from your radio, your Garmin chartplotter shows theman-overboard screen and prompts you to navigate to the man-overboard point. If you have a Garmin autopilot systemconnected to the network, your chartplotter prompts you to starta Williamson’s turn to the man-overboard point.If you cancel the man-overboard distress call on the radio, thechartplotter screen prompting you to activate navigation to theman-overboard location disappears.Man-Overboard Distress Calls Initiated from theChartplotterWhen your chartplotter is connected to a Garmin NMEA 2000compatible radio and you activate navigation to a man-overboard location, the radio shows the Distress Call page soyou can quickly initiate a man-overboard distress call.For information on placing distress calls from your radio, see theVHF radio owner’s manual. For information about marking anMOB, see page 8.Position TrackingWhen you connect your Garmin chartplotter to a VHF radiousing NMEA 0183, you can track vessels that send positionreports. This feature is also available with NMEA 2000, whenthe vessel sends the correct PGN data (PGN 129808; DSC CallInformation).Every position report call received is logged in the DSC list(page 18).Viewing a Position Report1 Select Nav Info > Other Vessels > DSC List.18 Digital Selective Calling