Garmin 541s Manuale Utente

Viewing Information

AIS alerts you to area traffic. When connected to an external AIS 

device, the chartplotter can show some AIS information about other 

vessels that are within range, that are equipped with a transponder, 

and that are actively transmitting AIS information. The information 

reported for each vessel includes the Maritime Mobile Service 

Identity (MMSI), the location, the GPS speed, the GPS heading, 

the time that has elapsed since the last position of the vessel was 

reported, the nearest approach, and the time to the nearest approach.

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.

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 

). 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 

). If the AIS 

transmission from the vessel is lost, a message banner 

appears.