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  2. Call signs in the United States - Wikipedia

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

    United States amateur radio call signs consist of one or two letters, followed by a single digit, and closing with one to three more letters. [20] The number in the call sign indicates in which of the ten U.S. radio districts the license was issued. (It is no longer necessary for U.S. amateur radio operators to change their call signs after ...

  3. List of three-letter broadcast call signs in the United States

    en.wikipedia.org/wiki/List_of_three-letter...

    As of June 20, 2023, there are a total of 102 AM, FM and TV stations in the United States that are assigned three-letter call signs. This is divided between only 67 different three-letter calls, because in many cases the same call sign is used by more than one station, although a given call sign is never assigned to more than one AM, FM or TV ...

  4. Amateur radio call signs - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_call_signs

    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. for all letter-digit-digit-letter callsigns, if the first character is other than B, F, G, I, K, M, N, R, or W then it is a 2×1 call sign; PNSS, 1×2 call sign prefix always a letter, suffix ...

  5. Call sign - Wikipedia

    en.wikipedia.org/wiki/Call_sign

    Russian nuclear icebreaker Arktika with call sign UKTY. Merchant and naval vessels are assigned call signs by their national licensing authorities. In the case of states such as Liberia or Panama, which are flags of convenience for ship registration, call signs for larger vessels consist of the national prefix plus three letters (for example, 3LXY, and sometimes followed by a number, e.g. 3LXY2).

  6. Call signs in North America - Wikipedia

    en.wikipedia.org/wiki/Call_signs_in_North_America

    The rules governing call signs for stations in the United States are set out in the FCC rules, 47 C.F.R. chapter I. Specific rules for each particular service are set out in the part of the rules dealing with that service. A general overview of call sign formats is found at 47 CFR 2.302.

  7. List of FM radio stations in the United States by call sign ...

    en.wikipedia.org/wiki/List_of_FM_radio_stations...

    This is a list of FM radio stations in the United States having call signs beginning with the letters KD through KF. Low-power FM radio stations, those with designations such as KDDE-LP, have not been included in this list.

  8. Broadcast call signs - Wikipedia

    en.wikipedia.org/wiki/Broadcast_call_signs

    In South America call signs have been a traditional way of identifying radio and TV stations. Some stations still broadcast their call signs a few times a day, but this practice is becoming very rare. Argentinian broadcast call signs consist of two or three letters followed by multiple numbers, the second and third letters indicating region.

  9. Radiotelephony procedure - Wikipedia

    en.wikipedia.org/wiki/Radiotelephony_procedure

    Radio call signs are a globally unique identifier assigned to all stations that are required to obtain a license in order to emit RF energy. The identifiers consist of from 3 to 9 letters and digits, and while the basic format of the call signs are specified by the ITU-R Radio Regulations, Article 19, Identification of stations, [5] the details are left up to each country's radio licensing ...