Garmin 640 Guida Utente

Marine Mode: Advanced Configuration

tracks Display—show or hide tracks on the chart according to 

color.

other Vessels—access AIS and DSC shortcuts, as well as chart-

specific AIS display settings.

aiS List—view the AIS list. See 

.

DSC List—view the DSC list. See 

.

aiS alarm—set the AIS alarm. See 

.

aiS Display Setup—configure chart-specific AIS display 

settings.

aiS Display range—specify the distance from your boat 

on the navigation chart where AIS icons are visible.
projected Heading—specify the amount of time ahead of 

an AIS target to project the heading of the AIS target.
Details—toggle AIS details on the Navigation chart on or 

off.
trails—show trails behind AIS icons on the Navigation 

chart for a position history of the other vessel. Specify the 

amount of time behind each AIS icon you want to maintain 

a trail. 

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Stop Navigation—stop active navigation.

From the Navigation chart, touch 

 > 

.

photos—enable and configure BlueChart g2 Vision high-resolution 

satellite imagery. See 

tides/Currents—toggle the tide station icons and current station 

icons on or off.
Service points—toggle the marine services icons on or off.
roses—enable information roses around the boat icon. Touch the 

rose you want to view on the chart. Touch 

 if you do not want 

a rose to appear on the chart.

  Note: You must connect an optional NMEA0183 wind sensor to 

view the True Wind and Apparent Wind roses.