XM Satellite Radio Stereo System GXM30 User Manual

®
GXM 30  
XM Radio Smart Antenna  
owner’s manual  
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INTRODUCTION > WARNINGS  
Warning  
Failure to avoid the following potentially hazardous situations  
could result in an accident or collision resulting in death or  
serious injury.  
When installing the GXM 30 in a vehicle, place the unit securely so  
that it does not interfere with vehicle operating controls or obstruct  
the driver’s view of the road (see diagram).  
When navigating in an aircraft, use the GXM 30 only as an aid  
for VFR navigation. Use weather data only as an aid to situational  
awareness.  
Do not mount  
where driver’s  
field of vision is  
blocked.  
This unit contains magnets which may cause compass deviation.  
Do not mount in front  
of an airbag field of  
deployment.  
Do not place  
unsecured on  
the vehicle  
dash.  
This product, its packaging, and its components contain chemicals known to the State of California to cause cancer, birth defects, or reproductive  
harm. This Notice is being provided in accordance with California’s Proposition 65. If you have any questions or would like additional  
information, please refer to our Web site at http://www.garmin.com/prop65.  
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INTRODUCTION > CAUTION  
Caution  
Failure to avoid the following potentially hazardous situations may result in injury or property damage.  
Use the GXM 30 only as a navigational aid. Do not attempt to use the GXM 30 for any purpose requiring precise measurement of direction,  
distance, location, or topography. This product should not be used to determine ground proximity for aircraft navigation.  
Notice to State of California Drivers: California Vehicle Code Section 26708 (a) (1) provides that “No person shall drive any motor  
vehicle with any object or material placed, displayed, installed, affixed, or applied upon the windshield or side or rear windows.” Drivers  
in California should not use the suction mount on their windshield or side or rear windows. Garmin does not take any responsibility for any  
fines, penalties, or damages that may be incurred as a result of disregarding this notice.  
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INTRODUCTION > ABOUT THIS MANUAL  
Terminology used throughout this manual  
INTRODUCTION  
This manual refers to the GXM 30 XM Radio Smart  
Antenna as the GXM 30.  
Preface  
Congratulations on choosing one of the most advanced  
weather systems available! The GXM 30 XM Radio Smart  
Antenna provides graphical and textual marine, aviation, and  
automotive XM WX weather information that can be viewed  
on your Garmin unit. Operation of the GXM 30 XM Radio  
Smart Antenna requires a subscription to the XM WX Satellite  
Weather service. Additionally, the GXM 30 XM Radio Smart  
Antenna offers music, news, and talk programming capability  
with a subscription to the XM Radio service. Hardware and  
XM subscriptions sold separately.  
All Garmin products that are compatible with the GXM  
30 are referred to as “Garmin unit” throughout this  
manual.  
This manual uses the term Warning to indicate a  
potentially hazardous situation, which, if not avoided,  
could result in death or serious injury.  
This manual uses the term Caution to indicate a  
potentially hazardous situation, which, if not avoided,  
may result in minor injury or property damage. It may  
also be used without the symbol to alert you to avoid  
unsafe practices.  
This manual covers the XM WX Weather and XM Radio  
features of the GXM 30 XM Radio Smart Antenna when  
viewed on a Garmin unit. To get the most out of your new  
system, take the time to go through this manual and the unit  
Owners Manual. Operational procedures are found in the unit  
Owners Manual. This manual discusses how to connect the  
GXM 30 XM Radio Smart Antenna, how to subscribe to XM  
WX Weather and XM Radio services and provides detailed  
information about weather and audio features.  
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INTRODUCTION > PRODUCT REGISTRATION  
Product Registration  
XM WX Weather and XM Radio ID  
Help us better support your equipment purchase by  
completing our online registration today! Have the serial  
number of your GXM 30 ready, connect to our Web site (www.  
garmin.com) and click the Product Registration link on the  
Home page. Record your serial number below for a quick  
reference.  
Use this area to record the radio ID numbers (8-digit number  
located on the Information sub tab of your unit) in case your  
unit is lost or stolen. XM Satellite Radio can deactivate these  
radio codes when you call.  
XM Radio ID Number  
Serial Number for GXM 30  
Use this area to record the serial number (8-digit  
number located on the bottom of your unit) in case  
it is lost, stolen, or needs service. Be sure to keep  
your original sales receipt in a safe place or attach a  
photocopy inside the manual.  
XM WX Satellite Weather Listener Care Center  
800-985-9200  
Serial Number:  
GXM30  
XM Radio ID  
010-00423-00  
XM RADIO ID:  
B99U70CU  
28400000  
Made in Taiwan  
Serial Number  
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INTRODUCTION > TABLE OF CONTENTS  
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GETTING STARTED > UNIT OVERVIEW  
GETTING STARTED  
Unit Overview  
UNIT CARE  
GXM 30 Radio Smart Antenna  
Cleaning - The unit’s case is constructed of high quality  
material and does not require user maintenance other  
than cleaning. Clean the unit housing using a lightly-  
dampened cloth with a mild detergent solution and then  
wipe dry. Avoid chemical cleaners and solvents that may  
damage plastic components. Do not apply cleaner to the  
electrical contacts on the front of the unit.  
USB Connector  
Storage - Do not store the GXM 30 where exposure  
to temperature extremes may occur, as permanent  
damage may result.  
Mounting Holes  
SERVICING YOUR UNIT  
The Garmin GXM 30 has no user-serviceable parts.  
Should you ever encounter a problem with your unit,  
take it to an authorized Garmin dealer for repairs.  
The GXM 30 is fastened shut with screws. Any attempt  
to open the case to change or modify the unit in any  
way voids your warranty and may result in permanent  
damage to the equipment.  
Magnetic Base  
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GETTING STARTED > CONNECTING THE GXM 30 TO A GARMIN UNIT  
Connecting the GXM 30 to a Garmin Unit  
Position the GXM 30 where is has a clear view of the sky. This can be on the outside of the vehicle or behind the windscreen of the  
vehicle. Connect the GXM 30 to the USB port on the Garmin unit.  
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GETTING STARTED > SUBSCRIBING TO XM WX WEATHER AND RADIO  
Select the Audio sub tab (it is next to the Information sub  
tab). Verify that XM Preview appears in the Radio Tuning  
box.  
Subscribing to XM WX Weather and Radio  
With the GXM 30 connected, contact XM Satellite Radio to  
activate your XM WX weather and audio subscription service.  
Follow the instructions below. Complete Steps 1-3 BEFORE  
calling XM Satellite Radio:  
Step 4: Set up the XM Account  
Contact XM by phone at 800-985-9200. After providing the  
required information, the XM representative activates the  
account and sends out an XM signal to activate the GXM 30.  
Step 1: Check the System Setup  
Make certain the GXM 30 is connected to the Garmin unit.  
For answers to other XM questions you can call the above  
Step 2: Turn on your System  
Place the GXM 30 where is has a clear view of the sky and t  
urn on the Garmin unit. This automatically turns on the GXM  
30.  
Step 3: Identify Radio ID  
On the Garmin unit, press the MENU key twice to display  
the Main Menu. A list of tabs appear down the left-hand side  
of the Main Menu. Using the ROCKER key, highlight the XM  
tab and select the Information sub tab.  
Write down the Radio ID number. Have the ID number, your  
billing address and other billing information ready when you  
contact XM.  
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GETTING STARTED > SUBSCRIBING TO XM SERVICE  
Step 5: Confirm all Components of your Service  
Package  
Step 6: Save the Service Package  
After the service package name appears in the Service  
Level field, turn off the Garmin unit.  
XM WX Weather: Keep your Garmin unit turned on to  
ensure you receive the XM signal. The XM signal is being  
received when the components of the selected service  
package are displayed in the Weather Products list on the  
Information sub tab. Do not turn off the Garmin unit until the  
name of the selected service package is displayed in the  
Service Level field (see Step 6).  
Step 7: Add Features to your Unit  
When you turn on the GXM 30 after completing Step 6, you  
are ready to add weather features to the unit’s Map Page  
and set your new favorite radio stations.  
XM Information  
XM Radio: Highlight the Audio sub tab and verify that  
channels 7, 9, 47, and 122 are being received. This  
indicates that all channels on XM’s basic radio service  
are being received. If within an hour the XM WX Weather  
and/or the XM Radio service has not activated, call XM WX  
customer care at 800-985-9200 to validate the activation  
of XM services. The customer care representative can  
refresh the activation signal or you can do this yourself a  
requested.  
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XM WEATHER FEATURES > DISPLAYING WEATHER INFORMATION  
XM WX WEATHER FEATURES  
Displaying Weather  
Displaying Weather Information  
The GXM 30 receives XM WX Weather data and shows it on  
the Garmin unit’s Map Page and other screens throughout the  
unit. 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.) 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 (See page 30 for all weather-related  
broadcast rates). For example, NEXRAD Radar data is  
broadcast at five minute intervals. When the Garmin unit is  
turned on or when a new feature is selected, the GXM 30 has to  
receive new data before it can be shown. You may experience a  
delay before weather data or a new feature appears on the map.  
To display weather features on the map, press  
the MENU key, highlight Show Weather, and  
press ENTER.  
To display weather features on the Garmin unit’s  
Map Page:  
1. Press the MENU key.  
2. Highlight Show Weather, and press ENTER.  
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XM WEATHER FEATURES > NEXRAD RADAR  
NEXRAD Radar  
NEXRAD or NEXt Generation Weather RADar displays precipitation from very light rain and snow up to strong thunderstorms in  
varying shades and colors. In the lower left corner of the screen is a Time Stamp. The Time Stamp displays the elapsed time  
since the National Weather Service provided the displayed information. To display a legend showing the colors for Rain, Mix,  
and Snow, press MENU, highlight Weather Legend, and press ENTER. NEXRAD can be displayed independently or with  
a variety of other weather information. For information on NEXRAD Limitations, Abnormalities, and Intensity, see pages  
31-32.  
NEXRAD  
NEXRAD Legend  
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XM WEATHER FEATURES > SATELLITE MOSAIC  
Satellite Mosaic  
Satellite Mosaic displays infared composite images of cloud cover taken by geostationary weather satellites. The Satellite Mosaic  
provides up to seven levels of cloud cover.  
Satellite Mosiac  
Cloud Tops Legend  
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XM WEATHER FEATURES > LIGHTNING  
Lightning  
Lightning strikes are represented by lightning bolt icons, as shown in the images below. Lightning appears on the map if strikes  
were detected within the last seven minutes. The ground-based lightning detection network only detects cloud-to-ground lightning.  
Lightning bolts indicate a  
cloud-to-ground lightning  
strike.  
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XM WEATHER FEATURES > STORM CELLS  
Storm Cells  
The Storm Cells feature displays storms as well as the storm’s projected path in the immediate future.  
Marine and Automotive units also show the size of the storm cell. The direction of the red cone indicates the projected path of the  
storm cell. The red bars that appear in the cone indicate where the storm will be in the future. Each bar represents 15 minutes.  
Aviation units show the direction of the storm with an arrow. The tip of the arrow indicates where the storm should be in 15  
minutes. Critical information about the storm cell can be viewed by selecting the storm cell with the map pointer.  
Automotive and Marine  
Aviation  
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XM WEATHER FEATURES > HURRICANES  
Hurricanes  
The Hurricanes feature shows the current position of a hurricane, tropical storm, or tropical depression, as well as its projected  
path (indicated by a red line). The darkened squares that appear along the red line display the projected locations received from the  
National Hurricane Center. The Center provides four forecasts at 12-hour intervals as well as a fifth forecast at a 24-hour interval.  
Hurricanes  
Hurricane Track  
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XM WEATHER FEATURES > SURFACE WINDS  
Surface Winds  
Marine and Automotive units display Surface Winds with a wind barb. The wind barb is a circle with a tail. The circle points into  
the wind. Wind speed is indicated by the different combination of flags that are attached to the tail.  
Wind Direction  
Surface Winds  
Calm  
5 knots  
10 knots  
15 knots  
20 knots  
50 knots  
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XM WEATHER FEATURES > SURFACE PRESSURE  
Winds Aloft  
Aviation units display winds aloft using wind barbs or a wind streamline depending on the zoom range of the map. Similar to  
Marine and Automotive units, the wind barbs indicate wind speed and direction. The wind streamline indicates wind direction with  
arrows.  
Wind Barbs  
Wind Streamline  
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XM WEATHER FEATURES > SURFACE PRESSURE  
Surface Pressure  
This feature displays pressure isobars and pressure centers. The isobars connect points of equal pressure. Pressure readings can help  
determine weather and wind conditions in an area. High pressure areas are generally associated with fair weather. Low pressure  
areas are generally associated with clouds and the chance of precipitation. Isobars that are packed closely together show a strong  
pressure gradient. Strong pressure gradients are associated with areas of stronger winds. Pressure units can be displayed in Millibars  
(mb), Inches of Mercury (in), and Hectopascals (hPa).  
Pressure Isobars  
Strong Pressure Gradient  
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XM WEATHER FEATURES > FRONTS  
Fronts  
The Fronts feature displays lines indicating the leading edge of an air mass. This feature also displays pressure centers. Pressure  
centers are represented by a large Red “L” for low pressure centers or a large Blue “H” for high pressure centers. Pressure centers  
represent an area where pressure is measured to be either the highest or lowest relative to the surrounding area.  
Cold Front  
Indicates a Low Pressure Center. A Low Pressure  
Center is an area where the measured pressure is  
Warm Front  
lowest relative to the surrounding area. Moving  
away from a Low Pressure Center in any horizontal  
direction results in increased pressure. Winds flow  
counterclockwise around Low Pressure Centers in  
North America.  
Stationary Front  
Occluded Front  
Trough  
Indicates a High Pressure Center. Similar to a Low  
Pressure Center, a High Pressure Center is an area  
where the measured pressure is highest relative to  
the surrounding area. Moving away from a High  
Pressure Center in any horizontal direction results  
in decreased pressure. Winds flow clockwise  
around Low Pressure Centers in North America.  
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XM WEATHER FEATURES > VISIBILITY  
Visibility  
Visibility is the forecast maximum horizontal distance that can be seen at the surface. Contour lines on the Visibility feature show  
the forecasted change in surface visibility. In the example below, visibility ranges from 1 miles to 4.5 miles.  
Visibility Contour Lines  
This image displays NEXRAD Radar, Satellite  
Mosaic, and Visibility. Displaying multiple  
features may help to provide a clearer picture  
of the weather conditions in the area.  
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XM WEATHER FEATURES > COUNTY WARNINGS  
County Warnings  
When the National Weather Service issues a weather warning for a county, the county is highlighted with the color corresponding to  
the warning. To view information about the warning, select the county with the map pointer. For more detail, press ENTER.  
Severe Thunderstorm Warning  
Tornado Warning  
Severe Thunderstorm Warning  
Flood Warning  
Flash Flood Warning  
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XM WEATHER FEATURES > WATER TEMPERATURE AND WAVE PERIOD  
Water Temperature  
The Water Temperature feature displays the water’s surface  
temperature. The temperature breaks are indicated by isotherm  
lines.  
Wave Period  
The Wave Period feature provides the time (in seconds)  
between successive waves.  
Water Temperature  
Wave Period  
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XM WEATHER FEATURES > WAVE DIRECTION AND WAVE HEIGHT  
Wave Direction  
The Wave Direction feature shows the direction in which a  
wave is moving, as indicated by the direction of the red arrow.  
Wave Height  
The Wave Height feature displays wave heights. The wave  
heights for an area are separated by contour lines.  
Wave Direction  
Wave Height  
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XM WEATHER FEATURES > MARINE WARNINGS  
Marine Warnings  
When a Marine Warning is issued, the area for the warning is highlighted in red. To view information about the warning, select the  
warning area with the map pointer. To view more detailed information, press ENTER.  
Marine Warnings  
Marine Warning Detailed Information  
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XM WEATHER FEATURES > BUOY REPORTS  
Buoy Reports  
Report readings are taken from buoys and coastal observation stations. These readings are used to determine Air Temperature,  
Dewpoint, Water Temperature, Tide, Wave Height and Period, Wind Direction and Speed, Visibility, and Barometric Pressure.  
Buoy Selected with map pointer  
Buoy report detail  
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XM WEATHER FEATURES > METAR  
METAR  
Meteorological Aeronautical Reports are an international code used for reporting weather observations. If METAR data is available  
for an airport, a color coded flag is shown next to the airport. To view the METAR data, select the flag with the map pointer. To  
view more detailed information, press ENTER.  
VFR (ceiling greater than 3000 feet AGL and visibility  
greater than 5 miles)  
Marginal VFR (ceiling 1000-3000 feet AGL and/or  
visibility 3-5 miles)  
IFR (ceiling 500 to below 1000 feet AGL and/or  
visibility 1 mile to less than 3 miles)  
Low IFR (ceiling below 500 feet AGL or visibility less  
than 1 mile)  
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XM WEATHER FEATURES > AIRMET  
AIRMET  
An AIRMET (AIRman’s METeorological Information) can potentially affect all aircraft. This data can be especially helpful for  
pilots of light aircraft that have limited flight capability or instrumentation. An AIRMET must affect or be forecast to affect an area  
of at least 3,000 square miles at any one time. AIRMETs are routinely issued for 6 hour periods and are amended as necessary due  
to changing weather conditions or issuance/cancellation of a SIGMET. AIRMETs are displayed as a colored dashed line. To view  
AIRMET data, select the AIRMET using the map pointer. To view detailed information, press ENTER.  
AIRMET Sierra (IFR) (purple): Ceilings less than 1,000 feet and/or visibility less than 3 miles affecting over 50% of the area  
at one time. Extensive mountain obscuration  
AIRMET Tango (Turbulence) (orange): Moderate turbulence. Sustained surface winds of 30 knots or more at the surface.  
AIRMET Zulu (Icing) (blue): Moderate icing. Freezing levels.  
AIRMET selected with map pointer  
AIRMET detailed information  
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XM WEATHER FEATURES > SIGMET  
SIGMET  
SIGMET selected with map pointer  
A SIGMET (SIGnificant METeorlogical Forecast) advises  
of weather that is potentially hazardous to all aircraft. In the  
contiguous United States, items covered are: severe icing,  
severe or extreme turbulence, volcanic ash, dust storms, and  
sandstorms that lower visibility to less than three statute miles.  
A Convective SIGMET is issued for: thunderstorms, isolated  
severe thunderstorms, embedded thunderstorms, hail at the  
surface, and tornadoes. A SIGMET is widespread. A SIGMET  
must affect or be forecast to affect an area of at least 3,000  
square miles.  
SIGMETs are displayed as a yellow dashed line. To view  
SIGMET data, select the SIGMET using the map pointer. To  
view detailed information, press ENTER.  
SIGMET detailed information  
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XM WEATHER FEATURES > TFR  
TFR  
Temporary Flight Restrictions or TFRs temporarily restrict all aircraft from entering the selected airspace unless a waiver has been  
issued. TFRs are routinely issued for occurrences such as sporting events, dignitary visits, military depots and forest fires. TFRs are  
represented as an area highlighted by Red (active) or Yellow (not yet active). To view information about the TFR, select it with the  
map pointer. To view more detailed information, press ENTER.  
TFR selected with map pointer  
TFR detailed information  
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XM WEATHER FEATURES > ECHO TOPS  
Echo Tops  
Echo Tops are derived from NEXRAD radar and indicate the highest altitude at which precipitation is falling. Echo Tops at or  
above the altitude you select are displayed, in 5,000 foot increments up to 70,000 ft. Echo Tops can be helpful in determining the  
severity of thunderstorms. (higher = more intense)  
Echo Tops for all altitudes  
Echo Tops at 15000 feet  
Echo Tops at 20000 feet  
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XM WEATHER FEATURES > FREEZING LEVEL—FORECAST  
Freezing Level  
Shows contours for the lowest forecast altitude where icing  
conditions are likely to occur.  
Forecast  
Forecast displays Fronts, High and Low Pressure Centers,  
and City Conditions. The forecast can be viewed in 12- hour  
increments for the next 48 hours.  
Forecast map  
Freezing Level Contours  
Forecast Legend  
Sunny  
Thunderstorms  
Windy  
Very Hot  
Partly Cloudy  
Rain  
Haze  
Mostly Cloudy  
Cloudy  
Freezing Rain  
Snow  
Foggy  
Very Cold  
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XM WEATHER FEATURES > TAF—XM RADIO  
TAF  
XM Audio  
Terminal Aerodrome Forecasts are issued by the National  
Weather Service for pilots. They include 24-hour forecasts on  
wind, visibility, expected weather conditions, and wind shear.  
The XM Audio feature requires a subscription to XM Radio.  
Channels can be scanned by category and saved to a Favorites  
list. The XM audio output can be turned on and off.  
Terminal Aerodrome Forecast  
Category  
Channel list  
Current song  
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APPENDIX > SPECFICATIONS  
APPENDIX  
Specifications  
Physical Specifications  
Size: 83mm diameter x 27.5mm height  
Weight: 224g (7.9 oz)  
Temp. Range: -40F to +185F (-40C to +85C)  
Case: fully sealed high-impact plastic with die-cast zinc base  
Waterproof: -1 meter submersion for 30 minutes IEC 60529 IPX7  
Mount Thread Size: M3 x 0.5  
Cable: Braided shield, 5 conductor 28 AWG, Right Angle Male Mini-B connector  
Power  
Source: 4.5-5.5 Vdc  
Usage: 2.5 watts max  
Performance  
Dynamics: 999 knots, 6g  
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APPENDIX > FEATURE BROADCAST RATES  
Data Broadcast  
Feature  
Data Broadcast  
Frequency  
Feature  
Frequency  
NEXRAD Radar  
Satellite Mosaic  
Storm Cells  
5 mins  
15 mins  
1.25 mins  
5 mins  
Marine Warnings  
METAR  
20 mins  
12 mins  
12 mins  
12 mins  
7.5 mins  
12 mins  
12 mins  
12 mins  
12 mins  
AIRMET  
Lightning  
SIGMET  
Surface Winds  
Surface Pressure  
Hurricane Track  
Visibility Forecast  
Fronts  
12 mins  
12 mins  
12 mins  
12 mins  
12 mins  
12 mins  
12 mins  
12 mins  
12 mins  
12 mins  
12 mins  
5 mins  
Echo Tops  
Winds Aloft  
TFR  
TAF  
Freezing Level  
Water Temperature  
Wave Height  
Wave Period  
Wave Direction  
Buoy Reports  
City Forecast  
County Warnings  
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APPENDIX > NEXRAD OVERVIEW  
NEXRAD Limitations  
NEXRAD Overview  
Certain limitations exist regarding the NEXRAD radar  
NEXRAD Description  
displays. Some, but not all, are listed for the user’s awareness:  
NEXRAD Radar is a Doppler radar system that has greatly  
improved the detection of meteorological events such as  
thunderstorms, tornadoes, and hurricanes. An extensive  
network of NEXRAD stations provides almost complete radar  
coverage of the continental United States, Alaska, and Hawaii.  
The range of each NEXRAD is 124 nautical miles.  
NEXRAD base reflectivity does not provide sufficient  
information to determine cloud layers or precipitation  
characteristics (hail vs. rain).  
NEXRAD base reflectivity is sampled at the minimum  
antenna elevation angle. An individual NEXRAD site  
cannot depict high altitude storms at close ranges, and  
has no information about storms directly over the site.  
NEXRAD Abnormalities  
There are possible abnormalities regarding displayed NEXRAD  
images. Some, but not all, of those include:  
Ground clutter  
Strobes and spurious radar data  
Sun strobes, when the radar antenna points directly at  
the sun  
Military aircraft deploy metallic dust (chaff) which can  
cause alterations in radar scans  
Interference from buildings or mountains, which may  
cause shadows  
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31  
 
APPENDIX > NEXRAD OVERVIEW  
NEXRAD Intensity  
Remarks  
Display  
Rain  
Display  
Snow  
Rain  
Snow  
Colors are used to identify the different  
NEXRAD echo intensities (reflectivity)  
measured in dBZ. (decibels of Z).  
dBZ  
(inches/hour)  
(inches/hour)  
Rain  
Snow  
<-10  
-10  
-5  
.00”  
.00”  
.00”  
.00”  
“Reflectivity” (designated by the letter Z) is  
the amount of transmitted power returned to  
the radar receiver. The dBZ values increase  
as returned signal strength increases.  
Precipitation intensity is displayed using  
colors represented by the dBZ values listed  
in the table to the right.  
.00”  
trace  
0
.00”  
trace - .05”  
trace - .10”  
.01”  
Very Light  
Light  
5
.00”  
10  
15  
20  
0” - trace  
.01”  
Light  
Light  
Light  
Light  
.1 - .2”  
.2 - .3”  
Light  
.02”  
Light  
25  
30  
.05”  
.09”  
.3 - .5”  
.5 - .7”  
Light  
Light - Moderate  
Moderate  
Light - Moderate  
The information presented in this manual is not  
meant to be comprehensive. The NOAA web  
site contains complete and detailed information  
regarding NEXRAD weather radar operation  
and theory. You can visit them at  
35  
40  
.24”  
.48”  
.7 - 1.0”  
Moderate  
Heavy  
Heavy  
Heavy  
1” + or sleet  
45  
50  
1.25”  
2.5”  
1” + or sleet  
sleet  
Heavy  
Intense  
Extreme  
Extreme  
Heavy  
55  
5.7”  
sleet  
55+  
12.7”  
32  
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APPENDIX > FCC COMPLIANCE  
television reception, which can be determined by turning the  
equipment off and on, the user is encouraged to try to correct  
the interference by one of the following measures:  
FCC Compliance  
Reorient or relocate the receiving antenna.  
Increase the separation between the equipment and the  
receiver.  
The GXM 30 complies with Part 15 of the FCC interference  
limits for Class B digital devices FOR HOME OR OFFICE  
USE. These limits are designed to provide more reasonable  
protection against harmful interference in a residential  
installation, and are more stringent than “outdoor”  
requirements.  
Connect the equipment into an outlet on a circuit  
different from that to which the receiver is connected.  
Consult the dealer or an experienced radio/TV  
technician for help.  
The GXM 30 does not contain any user-serviceable parts.  
Repairs should only be made by an authorized Garmin service  
center. Unauthorized repairs or modifications could result in  
permanent damage to the equipment, and void your warranty  
and your authority to operate this device under Part 15  
regulations.  
Operation of this device is subject to the following conditions:  
(1) This device may not cause harmful interference, and (2)  
this device must accept any interference received, including  
interference that may cause undesired operation.  
This equipment generates, uses, and can radiate radio  
frequency energy and may cause harmful interference to  
radio communications if not installed and used in accordance  
with the instructions. However, there is no guarantee that  
interference will not occur in a particular installation. If  
this equipment does cause harmful interference to radio or  
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APPENDIX > LIMITED WARRANTY  
IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY  
INCIDENTAL, SPECIAL, INDIRECT OR CONSEQUENTIAL  
DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE,  
OR INABILITY TO USE THIS PRODUCT OR FROM DEFECTS IN  
THE PRODUCT. Some states do not allow the exclusion of incidental  
or consequential damages, so the above limitations may not apply to  
you.  
Limited Warranty  
This Garmin product is warranted to be free from defects in materials  
or workmanship for one year from the date of purchase. Within this  
period, Garmin will at its sole option repair or replace any components  
that fail in normal use. Such repairs or replacement will be made at no  
charge to the customer for parts or labor, provided that the customer  
shall be responsible for any transportation cost. This warranty does not  
cover failures due to abuse, misuse, accident or unauthorized alteration  
or repairs.  
Garmin retains the exclusive right to repair or replace the unit  
or software or offer a full refund of the purchase price at its sole  
discretion. SUCH REMEDY SHALL BE YOUR SOLE AND  
EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY.  
THE WARRANTIES AND REMEDIES CONTAINED HEREIN  
ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES  
EXPRESS OR IMPLIED OR STATUTORY, INCLUDING  
ANY LIABILITY ARISING UNDER ANY WARRANTY OF  
MERCHANTABILITY OR FITNESS FOR A PARTICULAR  
PURPOSE, STATUTORY OR OTHERWISE. THIS WARRANTY  
GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY  
FROM STATE TO STATE.  
To obtain warranty service, contact your local Garmin authorized  
dealer or call Garmin Product Support for shipping instructions and an  
RMA tracking number. The unit should be securely packed with the  
tracking number clearly written on the outside of the package. The unit  
should then be sent, freight charges prepaid, to any Garmin warranty  
service station. A copy of the original sales receipt is required as the  
proof of purchase for warranty repairs.  
34  
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APPENDIX > LIMITED WARRANTY  
Garmin International, Inc.  
1200 E 151st Street, Olathe, Kansas 66062 U.S.A.  
Tel. 913/397.8200  
International Purchases: A separate warranty is provided by  
international distributors for units purchased outside the United States.  
This warranty is provided by the local in-country distributor and this  
distributor provides local service for your unit. Distributor warranties  
are only valid in the area of intended distribution. Units purchased in  
the United States or Canada must be returned to the Garmin service  
center in the United Kingdom, the United States, Canada, or Taiwan  
for service.  
Fax. 913/397.8282  
Garmin (Europe) Ltd.  
Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51  
9DL U.K.  
Tel. 44/0870.8501241  
Fax 44/0870.8501251  
The Garmin GXM 30 has no user-serviceable parts. Should you ever  
encounter a problem with your unit, please take it to an authorized  
Garmin dealer for repairs.  
Online Auction Purchases: Products sold through online auctions  
are not eligible for rebates or other special offers from Garmin. Online  
auction confirmations are not accepted for warranty verification. To  
obtain warranty service, an original or copy of the sales receipt from  
the original retailer is required. Garmin will not replace missing  
components from any package purchased through an online auction.  
The GXM 30 is fastened shut with screws. Any attempt to open the  
case to change or modify the unit in any way will void your warranty  
and may result in permanent damage to the equipment.  
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APPENDIX > SOFTWARE LICENSE AGREEMENT AND XM SATELLITE RADIO SERVICE AGREEMENT  
Software License Agreement  
XM Satellite Radio Service Agreement  
BY USING THE GXM 30, YOU AGREE TO BE BOUND BY THE  
TERMS AND CONDITIONS OF THE FOLLOWING SOFTWARE  
LICENSE AGREEMENT. PLEASE READ THIS AGREEMENT  
CAREFULLY.  
XM Satellite Radio Inc.  
Hardware and required monthly subscription sold separately.  
Subscription fee is consumer only. Other fees and taxes, including a  
one-time activation fee may apply. All programming fees and weather  
data subject to change. XM WX weather data displays and individual  
product availability vary by hardware equipment. Reception of the  
XM signal may vary depending on location. Subscriptions subject  
to Customer Agreement included with the XM Welcome Kit and  
available at xmradio.com. Available only in the 48 contiguous United  
States. XM WX is a trademark of XM Satellite Radio Inc.  
Garmin grants you a limited license to use the software embedded in  
this device (the “Software”) in binary executable form in the normal  
operation of the product. Title, ownership rights, and intellectual  
property rights in and to the Software remain in Garmin.  
You acknowledge that the Software is the property of Garmin and  
is protected under the United States of America copyright laws and  
international copyright treaties. You further acknowledge that the  
structure, organization, and code of the Software are valuable trade  
secrets of Garmin and that the Software in source code form remains  
a valuable trade secret of Garmin. You agree not to decompile,  
disassemble, modify, reverse assemble, reverse engineer, or reduce to  
human readable form the Software or any part thereof or create any  
derivative works based on the Software. You agree not to export or  
re-export the Software to any country in violation of the export control  
laws of the United States of America.  
36  
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APPENDIX > WEATHER DATA WARRANTY  
punitive damages or lost profits resulting from  
use of or interruptions in the transmission or reception of the  
Services.  
Weather Data Warranty  
THE SOFTWARE PRODUCT IS PROVIDED “AS IS.” ALL  
OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING  
ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR  
A PARTICULAR PURPOSE OR OF NON-INFRINGEMENT ARE  
HEREBY EXCLUDED.  
LIMITS ON OUR RESPONSIBILITY  
a) DISCLAIMERS.  
EXCEPT AS EXPRESSLY PROVIDED HEREIN, WE MAKE NO  
WARRANTY OR REPRESENTATION, EITHER EXPRESS OR  
IMPLIED, REGARDING THE RADIO SERVICE. YOUR USE  
OF THE SERVICE IS AT YOUR SOLE RISK. THE CONTENT  
AND FUNCTIONALITY OF THE SERVICE IS PROVIDED “AS  
IS” WITHOUT ANY WARRANTY OF ANY KIND, EXPRESS OR  
IMPLIED. ALL SUCH WARRANTIES OR REPRESENTATIONS  
(INCLUDING, WITHOUT LIMITATION, THE IMPLIED  
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A  
PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT)  
ARE HEREBY DISCLAIMED.  
USER SAFETY  
If you use XM Services it is your responsibility to exercise prudent  
discretion and observe all safety measures required by law and  
your own common sense. You assume the entire risk related to your  
use of the Services. XM and Garmin assume no responsibility for  
accidents resulting from or associated with use of the Services. Your  
Radio Service includes traffic and weather information, and you  
acknowledge that such information is not for “safety for life”, but is  
merely supplemental and advisory in nature, and therefore cannot be  
relied upon as safety-critical in connection with any aircraft, sea craft  
or automobile usage. This information is provided “as is” and XM  
and Garmin disclaim any and all warranties, express and implied,  
with respect thereto or the transmission or reception thereof. XM and  
Garmin further do not warrant the accuracy, reliability, completeness  
or timeliness of the traffic and weather information disclosed on the  
Radio Service. In no event will XM and Garmin, their data suppliers,  
service providers, marketing/distribution, software or Internet partners  
or hardware manufacturers be liable to you or to any third party for  
any direct, indirect, incidental, consequential, special, exemplary or  
GXM 30 XM Radio Smart Antenna Owner’s Manual  
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APPENDIX > WEATHER DATA WARRANTY AND TFR DATA  
b) LIMITATIONS OF LIABILITY.  
or otherwise in law or from a course of dealing or usage in trade, is  
made by NGA as to the accuracy and functioning of the product.  
WE ARE NOT RESPONSIBLE FOR ANY SPECIAL, INCIDENTAL,  
OR CONSEQUENTIAL DAMAGES OR LOSSES RELATING TO  
THE USE OF THE RADIO SERVICE, WHETHER BASED ON  
NEGLIGENCE OR OTHERWISE. OUR TOTAL LIABILITY TO  
YOU AND ANY OTHER PERSONS RECEIVING OUR SERVICES,  
REGARDLESS OF THE CAUSE, WILL IN NO EVENT EXCEED  
THE AMOUNTS THAT YOU HAVE PAID TO US FOR THE  
SERVICE THAT YOU RECEIVED DURING THE SIX (6) MONTH  
PERIOD IMMEDIATELY PRIOR TO THE SPECIFIC EVENT THAT  
GAVE RISE TO THE APPLICABLE DAMAGE OR LOSS. THIS  
ALLOCATION OF RISK IS REFLECTED IN OUR PRICES. YOU  
MAY HAVE GREATER RIGHTS THAN DESCRIBED ABOVE  
UNDER YOUR STATE’S LAWS  
c. Neither NGA nor its personnel will be liable for any claims,  
losses, or damages arising from or connected with the use of this  
product. The user agrees to hold harmless the United States National  
Geospatial-Intelligence Agency. The user’s sole and exclusive remedy  
is to stop using the DAFIF product.  
This product was developed using DAFIF™, a product of the National  
Geospatial-Intelligence Agency.  
TFR Data  
Temporary Flight Restriction (TFR) data is provided by the FAA  
and may not be updated outside of normal business hours. Confirm  
data currency though alternate sources and contact your local FSS  
for interpretation of TFR data.This product has not been endorsed or  
otherwise approved by the National Geospatial-Intelligence Agency, or  
the United States Department of Defense (10 U.S.C. 425)  
a. Under 10 U.S.C. 456, no civil action may be brought against the  
United States on the basis of the content of a navigational aid prepared  
or disseminated by either the former Defense Mapping Agency  
(DMA), National Imagery and Mapping Agency (NIMA), or the  
National Geospatial-Intelligence Agency (NGA).  
b. The DAFIF™ product is provided “as is,” and no warranty, express  
or implied, including, but not limited to the implied warranties of  
merchantability and fitness for particular purpose or arising by statute  
38  
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NEXRAD Intensity 32  
NEXRAD Legend 7  
NEXRAD Limitations 31  
NEXRAD Overview 31  
NEXRAD Radar 7  
D
I
INDEX  
Displaying Weather Information 6  
Icing 27  
IFR 22  
A
E
Interference 31  
Introduction i  
Isobars 14  
Add Features 5  
AIRMET 23  
Echo Tops 26  
F
O
Audio Submenu Tab 4  
Favorites List 28  
FCC Compliance 33  
Feature Broadcast Rates 30  
Flash Flood Warning 17  
Flood Warning 17  
Forecast 27  
Occluded Front 15  
L
B
Lightning 9  
P
Buoy Reports 21  
Limited Warranty 34  
Low Pressure Center 15, 27  
Physical Specifications 29  
Precipitation 7  
C
Cleaning 2  
Preface i  
M
Cleaning the Unit 2  
Cloud Cover 8  
Pressure Center 15  
Pressure Gradient 14  
Pressure gradient 14  
Pressure Isobars 14  
Projected Path 10  
Freezing Level 27  
Fronts 15  
Magnetic Base 2  
Marine Warnings 20  
METAR 22  
Coastal Observation Stations 21  
Cold Front 15  
G
Mounting Holes 2  
Connecting 3  
Ground Clutter 31  
Connecting the GXM 30 3  
Contact XM Satellite Radio 4  
County Warnings 17  
N
H
R
National Weather Service 17  
NEXRAD 7  
High Pressure Center 15, 27  
Hurricanes 11  
Radio ID 4  
Radio ID - Weather 4  
NEXRAD Abnormalities 31  
NEXRAD Colors 32  
NEXRAD Description 31  
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39  
S
T
W
X
Satellite Mosaic 8  
TAF 28  
Warm Front 15  
Warranty 34  
XM Audio 28  
Saving the Service Package 5  
Serial Number ii  
Temporary Flight Restriction 25  
Terminal Aerodrome Forecast 28  
TFR 25  
XM Package 5  
XM Radio 5  
Water Temperature 18  
Wave Direction 19  
Wave Height 19  
Wave Period 18  
Weather Data 6  
Weather Legend 7  
Weather Maps  
Servicing your unit 2  
Set up the XM Account 4  
Severe Thunderstorm Warning 17  
SIGMET 24  
XM Radio ID ii  
XM Weather/Radio  
800 number 4  
Time Stamp 7  
Tornado Warning 17  
Tropical Depression 11  
Tropical Storm 11  
Trough 15  
XM WX Weather 5  
Software License Agreement 36  
Specifications 29  
Stationary Front 15  
Storage 2  
Fronts 15  
U
Winds 12  
Unit Care 2  
Storm Cells 10  
Winds Aloft 13  
Wind Barbs 13  
Wind Streamline 13  
Unit Overview 2  
USB Connector 2  
USB Port 3  
Strobes 31  
Strong Pressure Gradient 14  
Subscribing to XM 4  
Sun Strobes 31  
V
Surface Pressure 14  
Surface Winds 12  
VFR 22  
Visibility 16  
40  
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For the latest free software updates (excluding map data) throughout the life of your  
© Copyright 2005 Garmin Ltd. or its subsidiaries  
Garmin International, Inc.  
1200 East 151st Street, Olathe, Kansas 66062, U.S.A.  
Garmin (Europe) Ltd.  
Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9DL, U.K.  
Garmin Corporation  
No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan  
www.garmin.com  
Part Number 190-00535-00 Rev. A  
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