Conguring the Chartplotter
GPSMAP 400/500 Series Owner’s Manual 53
To congure settings for boats other than your own, from the Home screen,
select > .
: To congure AIS or DSC information for other boats, your unit must
be connected to an external AIS or DSC device.
—turn AIS (Automatic Identication System) on or off. AIS alerts you to
area trafc by providing boat IDs, position, course, and speed for boats that are
within range and equipped with a transponder.
—turn DSC (Digital Selective Calling) on or off.
—create a safe zone around your boat for collision avoidance. The
zone can be customized.
From the Home screen, select > > .
• —change the measured radius of the safe-zone ring to a specied
distance from 500 ft. to 2.0 nm (or from 150 m to 3.0 km, or from 500
ft. to 2.0 mi).
• (Safe Zone)—sounds an alarm if AIS or MARPA determines
that a target will intersect the safe zone within the dened time interval
(from 1 to 24 minutes).
• —when is selected, a message is displayed (“AIS:
Dangerous Target”) when a vessel enters the safe zone. When is
selected, the message will not be displayed.
