Configuring Other Boats; Configuring Xm Audio - Garmin GPSMAP 420 Owner's Manual

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Configuring Other Boats

To configure settings for boats other than your own, from the Home
screen, select Configure > Other
AIS—turn AIS (Automatic Identification System) on or off. AIS
alerts you to area traffic 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 configure 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
specified 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 defined time interval
(ranging from 3 to 24 minutes).
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boats.

Configuring XM Audio

To configure XM audio, from the Home screen, select Configure
XM Audio. You can delete a preset channel, select a category, enter
a specific 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.
GPSMAP 400 Series Owner's Manual
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