(See, for example, the Combined Communications-Electronics Board, Allied Communications Publication 125F ... • Use callsigns and recognizable abbreviations or codes when referring to Keep in mind that your message should go through the first time – you may not have any opportunity to repeat it.2) Give the call sign of the unit you are calling first. After World War II, with many aircraft and ground personnel from the allied armed forces, "Able Baker" was officially adopted for use in international aviation. In the United States, the research was conducted by the USAF-directed Operational Applications Laboratory (AFCRC, ARDC), to monitor a project with the Research Foundation of The Ohio State University. The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code.. From 1948 to 1949, Jean-Paul Vinay, a professor of linguistics at the Université de Montréal worked closely with the ICAO to research and develop a new spelling alphabet. Using radio talk codes and the right lingo makes your message short and sweet. UXO-Unexploded Ordnance; potential to explode. He included lists from the US, Royal Air Force, Royal Navy, British Army, AT&T, Western Union, RCA Communications, and that of the International Telecommunications Convention. ... a military operation. Military-issued pistols are usually called 9-mils. Acknowledge: Use this when the person you are addressing must acknowledge receipt of the message. According to a report on the subject: The results showed that many of the words in the military lists had a low level of intelligibility, but that most of the deficiencies could be remedied by the judicious selection of words from the commercial codes and those tested by the laboratory. Alfa is spelled with an f as it is in most European languages because the English and French spelling alpha would not be pronounced properly by native speakers of some other languages – who may not know that ph should be pronounced as f.  Juliett is spelled with a tt for French speakers, because they may otherwise treat a single final t as silent. The “Code Purple” is used to alert the staff in case of a hostage taking. Only the ICAO prescribes pronunciation with the IPA, and then only for letters. Problems with the above list were soon identified.Some words were hard to understand under poor radio communications and some words were hard to differentiate, such as Delta and Extra. Gorilla Large force of indeterminate numbers and formation. VP maximizes clarity of spoken communication and reduces misunderstanding. To eliminate wide variations in pronunciation, recordings and posters illustrating the pronunciation desired by the ICAO are available. Go to the briefed HAVE QUICK net (UHF radio frequency hopping mode) Go clear Use unencrypted voice communications. In Pakistan, "Indigo" or "Italy" replaces "India" because of ongoing conflicts with India. The CCB alphabet itself was based on the U.S. Joint Army/Navy spelling alphabet. It has been used often by information technology workers to communicate serial or reference codes (which are often very long) or other specialised information by voice. During 1947 the ITU adopted the compound number words (Nadazero, Unaone, etc. Different agencies assign different stress patterns to Bravo, Hotel, Juliett, November, Papa, X-ray; the ICAO has different stresses for Bravo, Juliett, X-ray in its respelled and IPA transcriptions. The experience gained with that alphabet resulted in several changes being made during 1932 by the ITU. The same alphabetic code words are used by all agencies, but each agency chooses one of two different sets of numeric code words. Written 'nine' in the examples, but pronunciation given as 'niner', CS1 maint: multiple names: authors list (, International Civil Aviation Organization, Association of Public-Safety Communications Officials-International, Learn how and when to remove this template message, Alliance for Telecommunications Industry Solutions, International Telecommunication Union, Radio, Hartsfield-Jackson Atlanta International Airport, Allied military phonetic spelling alphabets, "SGM-675-55: Phonetic Alphabet for NATO Use", "ATIS Telecom Glossary (ATIS-0100523.2019)", "Joint Publication 1-02: Department of Defense Dictionary of Military and Associated Terms", "Where does the term "Bravo Zulu" originate? Anyone familiar with two-way radio lingo such as the military phonetic alphabet will attest that the phrases, codes and terms form their own unique languages.. 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