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  2. American Radio Relay League, Inc. v. FCC (1980) - Wikipedia

    en.wikipedia.org/wiki/American_Radio_Relay...

    American Radio Relay League, Inc. v. FCC, 617 F.2d 875 (D.C. Cir. 1980) was a notable Court of Appeals for the DC Circuit case between plaintiff, the American Radio Relay League and the Federal Communications Commission regarding licensing rights and radiofrequency interference (RFI). The case was argued in the Court of Appeals on December 12 ...

  3. Call signs in the United States - Wikipedia

    en.wikipedia.org/wiki/Call_signs_in_the_United...

    Call sign information for U.S. stations are set out in chapter I of the FCC rules, Title 47 (Telecommunication) of the Code of Federal Regulations (C.F.R.): 47 CFR 2.302: General overview of call sign assignments, including a detailed summary of standards and practices for various license classes.

  4. Amateur radio call signs - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_call_signs

    (See discussion on the D9K call sign issued by Korea above – 'when 2 characters are needed'.) PPNS, 2×1 call sign prefix can be letter-letter, letter-digit, or digit-letter. A call sign composed of a letter, two digits, and one-letter is always a 2×1 call sign, meaning it has a letter-digit prefix and a single-letter suffix.

  5. Amateur radio licensing in the United States - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_licensing_in...

    FCC amateur radio station license of Al Gross. In the United States, amateur radio licensing is governed by the Federal Communications Commission (FCC). Licenses to operate amateur stations for personal use are granted to individuals of any age once they demonstrate an understanding of both pertinent FCC regulations and knowledge of radio station operation and safety considerations.

  6. List of radio stations in Alabama - Wikipedia

    en.wikipedia.org/wiki/List_of_radio_stations_in...

    Down Home Broadcasting: Urban gospel WYZK-LP: 98.3 FM: Hartselle: Association for Social Justice in Morgan County: Variety WZAL-LP: 99.9 FM: Alabaster: Alabaster Broadcasting and Community Radio: Variety WZBQ: 94.1 FM: Carrollton: iHM Licenses, LLC: Top 40 (CHR) WZDK-LP: 98.5 FM: Decatur: North Alabama Youth Sports Association: Bluegrass WZEV ...

  7. Amateur radio propagation beacon - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_propagation...

    An amateur radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on LF, MF, HF, VHF, UHF, and microwave frequencies. Microwave beacons are also used as signal sources to test and calibrate antennas and ...

  8. Call signs in North America - Wikipedia

    en.wikipedia.org/wiki/Call_signs_in_North_America

    The call sign format for radio and television call signs follows a number of conventions. All call signs begin with a prefix assigned by the International Telecommunication Union (ITU). For example, the United States has been assigned the following prefixes: AAA–ALZ, K, N, W. For a complete list, see international call sign allocations.

  9. American Radio Relay League - Wikipedia

    en.wikipedia.org/wiki/American_Radio_Relay_League

    The American Radio Relay League (ARRL) is the largest membership association of amateur radio enthusiasts in the United States. ARRL is a non-profit organization and was co-founded on April 6, 1914, by Hiram Percy Maxim and Clarence D. Tuska of Hartford, Connecticut.