Garmin GPSMAP 741xs Owner's Manual - Page 47

Viewing Information AIS Targeting Symbols Symbol Description AIS vessel. The vessel is reporting AIS information. The direction in which the triangle is pointing indicates the direction in which the AIS vessel is moving. Target is selected. About AIS Search and Rescue Transmitters AIS Search and Rescue Transmitters (AIS-SART, or SART) are self-contained devices that transmit emergency position reports when activated. SART transmissions are different than standard AIS transmissions, so they look different than standard AIS symbols on the chartplotter. Instead of tracking a SART transmission for collision avoidance, you track a SART transmission to locate and assist a vessel. Navigating to a SART Transmission When you receive a SART transmission, a distress signal alarm appears. Select Review > Go To to begin navigation to the SART transmission. Target is activated. The target appears larger on the chart. A green line attached to the target indicates the heading of the target. The MMSI, speed, and direction of the vessel appear beneath the target, if the details setting is set to Show (page 43). If the AIS transmission from the vessel is lost, a message banner appears. Target is lost. A green X indicates that the AIS transmission from the vessel is lost, and the chartplotter displays a message banner asking whether the vessel should continue to be tracked. If you discontinue vessel tracking, the lost target symbol disappears from the chart or the 3D chart view. Dangerous target in range. The target flashes while an alarm sounds and a message banner appears. After the alarm is acknowledged, a solid red triangle with a red line attached to it indicates the location and the heading of the target. If the safe-zone collision alarm is set to Off, the target flashes, but the audible alarm does not sound and the alarm banner does not appear (page 44). If the AIS transmission from the vessel is lost, a message banner appears. GPSMAP 400/500 Series Owner's Manual 41