Garmin GPSMAP 420 - Configuring Other Boats; Configuring XM Audio

34 GPSMAP
®
400 Series Owner’s Manual
confIGurInG the unIt

Toconguresettingsforboatsotherthanyourown,fromtheHome
screen, select Congure > Other Boats.
AIS—turnAIS(AutomaticIdenticationSystem)onoroff.AIS
alertsyoutoareatrafcbyprovidingboatIDs,position,course,and
speed for boats equipped with a transponder within range.
DSC—turn DSC (Digital Selective Calling) on or off.
NOTE: TocongureAISorDSCinformationforotherboats,
your unit must be connected to an external AIS or DSC device.
See page 30 for more information.
Safe Zone—turn a safe zone around your boat on or off. This is
used for collision avoidance, and can be customized:
•
Ring—show or hide a ring on the map showing the safe zone
for your boat.
•
Range—change the measured radius of the safe zone ring to a
specieddistancefrom0.1to2.0nm(or.02to5.0km,or0.1
to 2.0 mi).
•
Time to—sounds an alarm if AIS determines that a target
willintersecttheSafeZonewithinthedenedtimeinterval
(ranging from 3 to 24 minutes).

TocongureXMaudio,fromtheHomescreen,selectCongure >
XM Audio. You can delete a preset channel, select a category, enter
aspecicchannel,andadjustthevolumelevel.
NOTE: XM Radio is available only on GPSMAP 430x and
440x units. You must plug the optional GXM 31 antenna into the
XM port on the back of the unit, and have a subscription to XM
Radio to use XM audio features. For more information, see the
GXM 31 Owner’s Manual.