Call sign

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Geliefert zwischen Mi., 19.11.2025 und Do., 20.11.2025

Details

In broadcasting and radio communications, a call sign is a unique designation for a transmitting station. In some countries they are used as names for broadcasting stations, but in many other countries they are not. A call sign can be formally assigned by a government agency, informally adopted by individuals or organizations, or even cryptographically encoded to disguise a station's identity. The use of callsigns as unique identifiers dates to the landline railroad telegraph system. Because there was only one telegraph line linking all railroad stations, there needed to be a way to address each one when sending a telegram. In order to save time, two letter identifiers were adopted for this purpose. This pattern continued in radiotelegraph operation; radio companies initially assigned two-letter identifiers to coastal stations and stations aboard ships at sea. These were not globally unique, so a one-letter company identifier was later added.

Weitere Informationen

  • Allgemeine Informationen
    • GTIN 09786130606978
    • Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
    • Sprache Englisch
    • Größe H220mm x B151mm x T17mm
    • Jahr 2010
    • EAN 9786130606978
    • Format Fachbuch
    • ISBN 978-613-0-60697-8
    • Titel Call sign
    • Untertitel ITU prefix, Callsigns in North America, List of New Zealand radio station callsigns, Airline codes, Soviet spacecraft call signs, Maritime Mobile Service Identity, Pseudonym, Station identification
    • Gewicht 240g
    • Herausgeber Alphascript Publishing
    • Anzahl Seiten 152
    • Genre Politikwissenschaft

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