It may assist if you are listening to the police or other agency radio traffic and do not fully understand the conversation. This list is provided as informational only. FEMA suggests that radio traffic be conducted in “plain talk” as much as possible to avoid misunderstandings. Local agencies or police departments may have their own non-standard meaning for a specific 10-Code which may lead to confusion if you assume they are using the standard code. While there is a suggested set of standard codes created by the APCO (Association of Police Communications Officers) they are not mandated as a standard. While you may hear these codes in use over the radio, it is best to avoid their use for general or emergency communications. #The international radiotelephony spelling alphabet tv#The most famous of these 10-Codes maybe 10-4 heard on many TV police dramas, meaning “Over and Out”. #The international radiotelephony spelling alphabet code#For example, to say “dog,” one would say “Delta-Oscar-Golf.” None of the 26 code words sound alike, so there is no doubt what is said when spelling this way.ġ0-Codes are a series of shorthand radio codes generally used by Police and government agencies. Multiple code words often are combined to form words or expressions. For instance, “Alpha” means “A,” “Bravo” means B, and so on. This version is very common and used by many US Federal Agencies and the United States Armed Forces.Įach word represents one letter of the alphabet. The IRSA Phonetic Alphabet consists of 26 code words that substitute each letter of the alphabet. The most common phonetic alphabet is known as the International Radiotelephony Spelling Alphabet (IRSA). The phonetic alphabet is used to spell out letters or words when communications are difficult or the environment is noisy. Many words sound similar and easily can be misunderstood, the same is true for some letters when you attempt to spell something out. The alphabet is still pivotal in today’s communication despite the massive leaps in technology.If you’ve ever talked on a cell phone or a radio with bad reception or in a loud place, you know how difficult it can be to communicate accurately. Similarly, the aviation sector also uses it to communicate passenger records and flight names. For example, the IT sector uses the alphabet to communicate long sequences of data that may be flummoxing. Consequently, the ICAO states improved the alphabet and a draft was ready by 1956 and is still in use today. However, the reversion did not mean that the need disappeared. Civilians and the military all over the world use the system. The majority of the pilots did not feel that the new alphabet was better than the old one and so they stuck to the old system. The alphabet is also known as the International Radiotelephony Spelling Alphabet, the International Civil Aviation Organization (ICAO) Phonetic Alphabet, or the International Telecommunication Union (ITU) Phonetic Alphabet. As with most debuts, there were problems. The professor worked in close association with NATO between 19 until a first draft was ready to be tested in the year 1951. A linguistic professor, Jean-Paul Vinay, was tasked with coming up with the phonetic alphabet system. The combination was first made in order to transmit and receive voice messages clearly through radio and telephone. This association is acrophonic, for instance Alfa for A, Kilo for K, Bravo for B and so on. It is the ICAO that has assigned code words to each alphabet. In transmitting information with no margin for error, a means of clearer communication needed to be established. ICAO stands for International Civil Aviation Organization. For examples, the letters "m" and "n" as well as "b" and "d" sound very similar when the name of the letter is said out loud. The ICAO phonetic alphabet was created and adopted primarily to avoid confusion among flight crews as some letters of the English alphabet can be easily confused when heard orally. The alphabet is also known as the International Radiotelephony Spelling Alphabet, the International Civil Aviation Organization (ICAO) Phonetic Alphabet, or the International Telecommunication Union (ITU) Phonetic Alphabet. The NATO phonetic alphabet is a radiotelephone spelling alphabet that assigns code words to each of the 26 letters of the alphabet and used for international radio communication worldwide.
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