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Garmin Pilot for Android User’s Guide
190-01532-00  Rev. G
124
DATA LINK WEATHER (FIS-B)
WARNING:  Do not use the indicated data link weather product age to determine the 
age of the weather information shown by the data link weather product.  Due to time 
delays inherent in gathering and processing weather data for data link transmission, the 
weather information shown by the data link weather product may be significantly older 
than the indicated weather product age.
  
WARNING:  Do not use data link weather information for maneuvering in, near, or 
around areas of hazardous weather.  Information contained with in data link weather 
products may not accurately depict current weather conditions. 
The GDL 39 / GDL 39 3D can also receive and, when connected to Garmin Pilot, 
display Flight Information Service-Broadcast (FIS-B).  FIS-B is a subscription-free 
weather service that is broadcast by Ground Based Transceivers (GBTs) over the 978 
MHz UAT frequency band as part of the FAA’s Next Generation Air Transportation 
System (NextGen).  To receive FIS-B weather information, the GDL 39 / GDL 39 3D 
must be within range and line-of-sight of an operating GBT.  Reception may be affected 
by factors including altitude or terrain.  GDL 39 / GDL 39 3D-supported FIS-B weather 
products include METARs, TAFs, NEXRAD (Regional and CONUS), AIRMETs, SIGMETs, 
PIREPs, Winds and Temperatures Aloft, and NOTAMs.
Viewing FIS-B Weather product Status:
1)  From any page, tap Home Settings.
2)  Tap the GDL 39 Tab. 
Viewing Ground Station Status:
1)  From any page, tap Home Settings.
2)  Tap the GDL 39 Tab. 
FIS-B WEATHER PRODUCTS
FIS-B weather broadcasts are updated regularly and may take approximately ten 
minutes to transmit all available weather data.  Therefore, not all available weather 
data is immediately available.  No pilot action is required to receive FIS-B weather 
information.  Weather product status can be viewed on the Settings Page under the 
GDL 39 tab.
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