Garmin echomap 40 series Owner's Manual

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Garmin echomap 40 series Owner's Manual Manual pdf 9 page image

course line does not appear. Changes in the speed, course overground, or rate of turn information transmitted by the vessel canimpact the calculation of the projected course line.When course over ground, heading, and rate of turn informationare provided by an activated AIS target, the projected course ofthe target is calculated based on the course over ground and therate of turn information. The direction in which the target isturning, which is also based on the rate of turn information, isindicated by the direction of the barb at the end of the headingline. The length of the barb does not change.When course over ground and heading information are providedby an activated AIS target, but rate of turn information is notprovided, the projected course of the target is calculated basedon the course over ground information.Showing AIS Vessels on a Chart or 3D Chart ViewBefore you can use AIS, you must connect the chartplotter to anexternal AIS device and receive active transponder signals fromother vessels.You can configure how other vessels appear on a chart or on a3D chart view. The display range configured for one chart or one3D chart view are applied only to that chart or to that 3D chartview. The details, projected heading, and trails settingsconfigured for one chart or one 3D chart view are applied to allcharts and to all 3D chart views.1 From a chart or 3D chart view, select MENU > OtherVessels > AIS Display Setup.2 Select an option:• To indicate the distance from your location in which AISvessels appear, select Display Range, and select adistance.• To show details about AIS-activated vessels, selectDetails > Show.• To set the projected heading time for AIS-activatedvessels, select Projected Heading, and enter the time.• To show the tracks of AIS vessels, select Trails, andselect the length of the track that appears using a trail.Activating a Target for an AIS Vessel1 From a chart or a 3D chart view, select an AIS vessel.2 Select AIS Vessel > Activate Target.Viewing Information about a Targeted AIS VesselYou can view the AIS signal status, MMSI, GPS speed, GPSheading, and other information that is reported about a targetedAIS vessel.1 From a chart or a 3D chart view, select an AIS vessel.2 Select AIS Vessel.Deactivating a Target for an AIS Vessel1 From a chart or a 3D chart view, select an AIS vessel.2 Select AIS Vessel > Deactivate Target.Viewing a List of AIS ThreatsFrom a chart or 3D chart view, select MENU > OtherVessels > AIS List.Setting the Safe-Zone Collision AlarmBefore you can set a safe-zone collision alarm, you must have acompatible chartplotter connected to an AIS device.The safe-zone collision alarm is used only with AIS. The safezone is used for collision avoidance, and can be customized.1 Select Settings > Alarms > AIS > AIS Alarm > On.A message banner appears and an alarm sounds when anAIS-activated vessel enters the safe-zone area around yourboat. The object is also labeled as dangerous on the screen.When the alarm is off, the message banner and audiblealarm are disabled, but the object is still labeled asdangerous on the screen.2 Select Range.3 Select a distance for the safe-zone radius around yourvessel.4 Select Time To.5 Select a time at which the alarm will sound if a target isdetermined to intersect the safe zone.For example, to be notified of a pending intersection 10minutes before it will likely occur, set Time To to 10, and thealarm will sound 10 minutes before the vessel intersects thesafe zone.AIS Distress SignalsSelf-contained AIS distress signal devices transmit emergencyposition reports when activated. The chartplotter can receivesignals from Search and Rescue Transmitters (SART),Emergency Position Indicating Radio Beacons (EPIRB), andother man overboard signals. Distress signal transmissions aredifferent than standard AIS transmissions, so they appeardifferently on the chartplotter. Instead of tracking a distresssignal transmission for collision avoidance, you track a distresssignal transmission to locate and assist a vessel or person.Navigating to a Distress Signal TransmissionWhen you receive a distress signal transmission, a distresssignal alarm appears.Select Review > Go To to begin navigation to thetransmission.AIS Distress Signal Device Targeting SymbolsSymbol DescriptionAIS distress signal device transmission. Select to see moreinformation about the transmission and begin navigation.Transmission lost.Transmission test. Appears when a vessel initiates a test oftheir distress signal device, and does not represent a trueemergency.Transmission test lost.Enabling AIS Transmission Test AlertsTo avoid a large number of test alerts and symbols in crowdedareas such as marinas, you can select to receive or ignore AIStest messages. To test an AIS emergency device, you mustenable the chartplotter to receive test alerts.1 Select Settings > Alarms > AIS.2 Select an option:• To receive or ignore Emergency Position Indicating RadioBeacon (EPRIB) test signals, select AIS-EPIRB Test.• To receive or ignore Man Overboard (MOB) test signals,select AIS-MOB Test.• To receive or ignore Search and Rescue Transponder(SART) test signals, select AIS-SART Test.Turning Off AIS ReceptionAIS signal reception is turned on by default.Select Settings > Other Vessels > AIS > Off.All AIS functionality on all charts and 3D chart views isdisabled. This includes AIS vessel targeting and tracking,collision alarms that result from AIS vessel targeting andtracking, and the display of information about AIS vessels.Charts and 3D Chart Views 5