4 Letter Call Signs. The first letter must be a k or a w. Occasionally, you hear a call sign consisting of one letter, one numeral, and one number.
It is a common misconception that call signs are granted to the first person to apply on any given day. The letters a, f, and cannot be used, and letters next to each other cannot be the same. The cuban call signs were officially reorganized in 1982.
1 questions & answers place.
In australia, call signs are structured with a two letter prefix, a digit (which identifies geographical area), and a 2, 3 or 4 letter suffix. The call letters of a radio station must have 4 letters. The cuban call signs were officially reorganized in 1982. There are up to three different request types for requesting vanity call signs, depending on whether the call sign is to apply to a primary or a club station.