SV-MAP-270 Navigation Mapping Software
SkyView Classic Pilot’s User Guide –
Revision Z
7-79
Weather and TFR Information
When connected to an SV-ADSB-470/472 module, SkyView can display NEXRAD weather and
Temporary flight Restriction (TFR) information visually on the SkyView map page. Additionally,
textual METAR and TAF weather reports are available for airports that report such information.
The SV-ADSB-470/472 receives traffic and weather via the 978 MHz UAT ADS-B
frequencies, which are only utilized
by the FAA’s ADS
-B system. Therefore, traffic
and weather are only available in the US (and other places the FAA may have ADS-B
ground stations, including Guam, Puerto Rico, and the US Virgin Islands). The SV-
ADSB-470/472 will not work outside these areas, with the exception that the SV-
ADSB-472 can receive air-to-air 1090 MHz ADS-B Out equipped aircraft wherever
they might be encountered.
Weather information is transmitted continuously over a data link from the ground,
but reception of weather data is dependent on ADS-B ground station
proximity/coverage, signal strength, and other environmental conditions.
Therefore, ADS-B weather reception may not be continuous.
Due to latencies that accumulate while NEXRAD weather images are created, and
the way that the FIS-B/NEXRAD services timestamp weather data, NEXRAD images
are actually ALWAYS older than the age indicated on the display. In extreme cases,
this can mean that the images you see on SkyView may be 15-20 minutes older
than the age indicated by SkyView. See
http://www.ntsb.gov/doclib/safetyalerts/SA_017.pdf
for further information about
this phenomenon.
Never rely on NEXRAD imagery to try to “squeeze” through a weather system.
Often, deadly turbulence and wind shear are present, even in places in storm
systems where there is no precipitation indicated.
The Weather and TFR information that SkyView provides is supplemental
information only. It should not be used as your primary means of weather
information. Only official FAA briefing information sources should be used to make
critical aeronautical weather decisions.
SV-ADSB-470/472 Weather Capabilities (US Only)
The FAA’s network of ADS
-B ground stations continuously transmits weather and other
information such as TFRs via a 978 MHz UAT Band ADS-B data link. The SV-ADSB-470/472
module can receive this information, and currently supports the following FIS-B products.
Future updates to SkyView will support additional FIS-B products.
