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This is an accepted version of this page This is the latest accepted revision, reviewed on 15 January 2025. Letter names for unambiguous communication Not to be confused with International Phonetic Alphabet. Alphabetic code words A lfa N ovember B ravo O scar C harlie P apa D elta Q uebec E cho R omeo F oxtrot S ierra G olf T ango H otel U niform I ndia V ictor J uliett W hiskey K ilo X ray L ...
Each row in the right columns set contains a scrambled alphabet, with two letters in each cell. (There are 13 columns, so two letters per cell exhausts the alphabet.) A traffic key consist of a digit (from 2 to 7) and a letter. The operator selects one of the first 6 columns using the key digit and then finds the row in which the key letter occurs.
R and S brevity codes, published by the British Post Office in 1908 for coastal wireless stations and ships, superseded in 1912 by Q codes [1] X code, used by European military services as a wireless telegraphy code in the 1930s and 1940s; Z code, also used in the early days of radiotelegraph communication.
A shackle code is a cryptographic system used in radio communications on the battle field by the US military, the Rhodesian Army, and the Canadian Army, among other English speaking militaries which might not distribute or require sophisticated one-time use pads. It is specialized for the transmission of numerals.
Supermarine Spitfire Mk Vb of the Polish 303 Kościuszko Squadron showing the RAF squadron code "RF" of 303 Squadron and the individual aircraft letter "D" which would be spoken, D-Dog Instruction page from WW I U.S. Army trench code, Seneca edition, with spelling alphabet for telephone and radio use
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 ...
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The old C&W Z codes are not widely used today. 2. APCO [clarification needed] also developed a system of Z codes. [1] 3. NATO forces independently developed a later set of Z codes for military use and inter-language needs. The NATO Z codes are still in use, and are published in the unclassified document ACP-131.