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7.3.1 FAA FISDL (VHF) service provides, free of charge, the following basic text products:
7.3.1.1 Aviation Routine Weather Reports (METARs).
7.3.1.2 Aviation Selected Special Weather Reports (SPECIs).
7.3.1.3 Terminal Area Forecasts (TAFs), and their amendments.
7.3.1.4 Significant Meteorological Information (SIGMETs).
7.3.1.5 Convective SIGMETs.
7.3.1.6 AIRMET text bulletins (WA).
7.3.1.7 Pilot Reports (both urgent and routine) (PIREPs); and,
7.3.1.8 Severe Weather Forecast Alerts and Warn-ings (AWWs/WW) issued by the NOAA Storm Prediction Center (SPC).
7.3.2 The format and coding of these text products are described in Advisory Circular AC.00.45, Aviation Weather Services, and FIG GEN 3.5.24 and FIG GEN 3.5.25, Key to Aerodrome Forecast (TAF) and Aviation Routine Weather Report (METAR).
7.3.3 Additional products, called “Value.Added Products,” are also available from the vendor on a paid subscription basis. Details concerning the content, format, symbology and cost of these products may be obtained from the vendor.

7.4 FAA’s Flight Information Service.Broadcast (FIS.B) Service. FIS.B is a ground.based broad-cast service provided through the FAA’s Automatic Dependent Surveillance – Broadcast Services (ADS.B) Universal Access Transceiver (UAT) network. The service provides users with a 978 MHz data link capability when operating within range and line.of.sight of a transmitting ground station. FIS.B enables users of properly equipped aircraft to receive and display a suite of broadcast weather and aeronautical information products. Services are currently available in specific geographic regions of the U.S. with NAS.wide service availability planned for 2013.
7.4.1 The following list represents the initial suite of text and graphical products available through FIS.B and provided free.of.charge. Detailed information concerning FIS.B meteorological products can be found in Advisory Circular 00.45, Aviation Weather Services. Information on Special Use Airspace (SUA), Temporary Flight Restriction (TFR) and Notice to Airmen (NOTAM) products can be found in Chapters ENR 1and ENR 5 of this manual.
7.4.1.1 Text: Aviation Routine Weather Report (METAR) and Special Aviation Report (SPECI);
7.4.1.2 Text: Pilot Weather Report (PIREP);
7.4.1.3 Text: Winds and Temperatures Aloft;
7.4.1.4 Text: Terminal Area Forecast (TAF) and amendments;
7.4.1.5 Text: Notice to Airmen (NOTAM) Distant and Flight Data Center;
7.4.1.6 Text/Graphic: Airmen’s Meteorological Conditions (AIRMET);
7.4.1.7 Text/Graphic: Significant Meteorological Conditions (SIGMET);
7.4.1.8 Text/Graphic: Convective SIGMET;
7.4.1.9 Text/Graphic: Special Use Airspace (SUA);
7.4.1.10 Text/Graphic: Temporary Flight Restric-tion (TFR) NOTAM; and
7.4.1.11 Graphic: NEXRAD Composite Reflectiv-ity Products (Regional and National).
7.4.2 Users of FIS.B should familiarize themselves with the operational characteristics and limitations of the system, including: system architecture; service environment; product lifecycles; modes of operation; and indications of system failure.
7.4.3 FIS.B products are updated and transmitted at specific intervals based primarily on product issuance criteria. Update intervals are defined as the rate at which the product data is available from the source for transmission. Transmission intervals are defined as the amount of time within which a new or updated product transmission must be completed and/or the rate or repetition interval at which the product is rebroadcast. Update and transmission intervals for each product are provided in NO TAG.
7.4.4 Where applicable, FIS.B products include a look.ahead range expressed in nautical miles (NM) for three service domains: Airport Surface; Terminal Airspace; and En.route/Gulf.of.Mexico (GOMEX). NO TAG provides service domain availability and look.ahead ranging for each FIS.B product.
7.4.5 Prior to using this capability, users should familiarize themselves with the operation of FIS.B avionics by referencing the applicable User’s Guides. Guidance concerning the interpretation of informa-tion displayed should be obtained from the appropriate avionics manufacturer.
7.4.6 FIS.B malfunctions not attributed to aircraft system failures or covered by active NOTAM should be reported by radio or telephone to the nearest FSS facility. Malfunctions may also be reported by submitting FAA Form 8740.5, Safety Improvement Report via mail, fax, or email to your local Flight District Standards Office, Safety Program Manager.
7.5 Non.FAA FISDL Systems. Several commer-cial vendors also provide customers with FIS data over both the aeronautical spectrum and on other frequencies using a variety of data link protocols. In some cases, the vendors provide only the commu-nications system that carries customer messages, such as the Aircraft Communications Addressing and Reporting System (ACARS) used by many air carrier and other operators.
　
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