Garmin ECHOMAP Plus 45cv Owners Manual PDF - Page 14
Activating a Target for an AIS Vessel
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provided, the projected course of the target is calculated based on the course over ground information. Activating a Target for an AIS Vessel 1 From a chart or a 3D chart view, select an AIS vessel. 2 Select AIS Vessel > Activate Target. Viewing Information about a Targeted AIS Vessel You can view the AIS signal status, MMSI, GPS speed, GPS heading, and other information that is reported about a targeted AIS vessel. 1 From a chart or a 3D chart view, select an AIS vessel. 2 Select AIS Vessel. Deactivating a Target for an AIS Vessel 1 From a chart or a 3D chart view, select an AIS vessel. 2 Select AIS Vessel > Deactivate Target. Viewing a List of AIS Threats From a chart or 3D chart view, select MENU > Other Vessels > AIS List. Setting the Safe-Zone Collision Alarm Before you can set a safe-zone collision alarm, you must have a compatible chartplotter connected to an AIS device. The safe-zone collision alarm is used only with AIS. The safe zone 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 an AIS-activated vessel enters the safe-zone area around your boat. The object is also labeled as dangerous on the screen. When the alarm is off, the message banner and audible alarm are disabled, but the object is still labeled as dangerous on the screen. 2 Select Range. 3 Select a distance for the safe-zone radius around your vessel. 4 Select Time To. 5 Select a time at which the alarm will sound if a target is determined to intersect the safe zone. For example, to be notified of a pending intersection 10 minutes before it will likely occur, set Time To to 10, and the alarm will sound 10 minutes before the vessel intersects the safe zone. AIS Aids to Navigation An AIS aid to navigation (ATON) is any kind of navigational aid that is transmitted over the AIS radio. ATONs are displayed on the charts and have identifying information, such as position and type. There are three main kinds of AIS ATONs. Real ATONs physically exist and send their identifying and location information from their actual location. Synthetic ATONs physically exist, and their identifying and location information is sent from another location. Virtual ATONs do not actually exist, and their identifying and location information is sent from another location. You can view AIS ATONs on the chart when the chartplotter is connected to a compatible AIS radio. To show AIS ATONs, from a chart, select MENU > Layers > Chart > Navaid > ATONs. You can view more information about an ATON if you select the ATON on the chart. Symbol Meaning Real or synthetic ATON Real or synthetic ATON: Topmark North Real or synthetic ATON: Topmark South Symbol Meaning Real or synthetic ATON: Topmark East Real or synthetic ATON: Topmark West Real or synthetic ATON: Topmark Special Real or synthetic ATON: Topmark Safe Real or synthetic ATON: Topmark Danger Virtual ATON Virtual ATON: Topmark North Virtual ATON: Topmark South Virtual ATON: Topmark East Virtual ATON: Topmark West Virtual ATON: Topmark Special Virtual ATON: Topmark Safe Virtual ATON: Topmark Danger AIS Distress Signals Self-contained AIS distress signal devices transmit emergency position reports when activated. The chartplotter can receive signals from Search and Rescue Transmitters (SART), Emergency Position Indicating Radio Beacons (EPIRB), and other man overboard signals. Distress signal transmissions are different than standard AIS transmissions, so they appear differently on the chartplotter. Instead of tracking a distress signal transmission for collision avoidance, you track a distress signal transmission to locate and assist a vessel or person. Navigating to a Distress Signal Transmission When you receive a distress signal transmission, a distress signal alarm appears. Select Review > Go To to begin navigation to the transmission. AIS Distress Signal Device Targeting Symbols Symbol Description AIS distress signal device transmission. Select to see more information about the transmission and begin navigation. Transmission lost. Transmission test. Appears when a vessel initiates a test of their distress signal device, and does not represent a true emergency. Transmission test lost. Enabling AIS Transmission Test Alerts To avoid a large number of test alerts and symbols in crowded areas such as marinas, you can select to receive or ignore AIS test messages. To test an AIS emergency device, you must enable the chartplotter to receive test alerts. 1 Select Settings > Alarms > AIS. 2 Select an option: • To receive or ignore Emergency Position Indicating Radio Beacon (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 Reception AIS signal reception is turned on by default. Select Settings > Other Vessels > AIS > Off. 8 Charts and 3D Chart Views