APCO radiotelephony spelling alphabet - Wikipedia
https://en.wikipedia.org/wiki/APCO_radiotelephony_spelling_alphabet
The APCO phonetic alphabet, a.k.a. LAPD radio alphabet, is the term for an old competing spelling alphabet to the ICAO radiotelephony alphabet, defined by the Association of Public-Safety Communications Officials-International from 1941 to 1974, that is used by the Los Angeles Police Department (LAPD) and other local and state law enforcement agencies across the …
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