GPSMAP 640 Owner’s Manual 31
Marine Mode: Managing Information From Other Vessels
Marine Mode: Managing Information
From Other Vessels
Use the Information screen to view and manage information about
other boats.
NOTE:
To view information about other boats, your unit must be
connected to an external Automatic Identication System (AIS) or
Digital Selective Calling (DSC) device.
Viewing AIS Information
From the Home screen, touch Information > Other Vessels >
AIS List to view the Maritime Mobile Service Identities (MMSIs)
or names (if the boat is broadcasting a name) of nearby AIS-
equipped boats.
The AIS list is sorted by range, with the nearest boat at the top of
the list.
Viewing DSC Information
From the Home screen, touch Information > Other Vessels >
DSC List to view a list of all received DSC distress calls and
position reports.
By default, the DSC list is sorted by name. To change the sorting of
the DSC list, touch Menu, then choose a category to sort by:
Sort by Name—(default) show an alphanumerical list of DSC
calls and reports, sorted by name.
Sort by Time
—show the most recent DSC calls and reports
received, sorted and listed chronologically by time and date.
Calls and reports with identical time and date information show
the same information in the list.
Sort by MMSI
—show an alphanumerical list of calls and
reports, sorted by MMSI number.
Sort by Type
—separate distress calls from position reports, and
show the most recent calls or reports, sorted chronologically.
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