58 GPSMAP 4000 Series Owner’s Manual
Using XM
USinG Xm
Using XM WX Weather and Audio
In order to use XM WX Weather, you must have a Garmin XM WX weather receiver and an
activated XM weather subscription. To use XM Audio, you must have a Garmin XM audio receiver
and an XM Audio subscription. Visit http://www8.garmin.com/xm/ for more information. To
connect the XM antenna and receiver and for subscription instructions, refer to the Owner’s Manual
for your XM equipment.
If you do not have a receiver and a subscription to XM WX Weather, the weather features described
in this section work only when the chartplotter is in Simulator mode. Simulator mode does not
supply live weather data.
Using XM WX Weather
The Garmin XM receiver receives XM WX Weather data and shows it on your chartplotter’s
Navigation chart and other screens throughout the device. The weather data for each feature
comes from reputable weather data centers such as the National Weather Service and the
Hydrometerological Prediction Center. (See the XM WX Satellite Weather Web site at http://
weather.xmradio.com/weather for more information.)
NOTE: Any weather feature can change in appearance or interpretation if the source that provides the
information changes.
XM WX Weather data is broadcast at set rates. For example, NEXRAD (NEXt Generation Weather
RADar) data is broadcast at ve minute intervals. When the Garmin receiver is turned on or when a
new feature is selected, the receiver has to receive new data before it can be shown.
NOTE: You might experience a delay before weather data or a new feature appears on the map.
Viewing NEXRAD Precipitation Information
Precipitation shows NEXRAD radar, storm cells, lighting strikes, and hurricane warnings. NEXRAD
shows very light rain and snow up to strong thunderstorms in varying shades and colors. The time
stamp in the upper-left corner of the screen displays the elapsed time since the National Weather
Service last updated the information. You can view NEXRAD information as an image of the latest
update, or as an animated loop of the latest updates. NEXRAD is shown independently or with a
variety of other weather information.
From the Home screen, select Weather >
Precipitation.
To display an animated loop:
From the Home screen, select Weather >
Precipitation > Menu > NEXRAD Loop >
On.
To turn cloud cover on or off:
From the Home screen, select Weather >
Precipitation > Menu > Cloud Cover >
Hide or Show.
