How should digits and letters be spoken when transmitting a registration such as N123AB?

• A. Digits spoken together; letters spoken separately
• B. Digits spoken individually; letters spoken individually
• C. Digits spoken as words; letters spoken as phonetics
• D. Digits spoken as numbers; letters spoken as phonetic alphabet

Answer: (B)

Clear communication rests on enunciating every character one at a time so nothing blends together on the radio. For a registration like N123AB, saying each digit separately—one, two, three—keeps the numeric portion unmistakable. Saying each letter separately—A, B—ensures the exact letter characters are heard and not mistaken for other symbols or parts of a word. This careful separation helps the receiving station reconstruct the full registration accurately, even in a noisy or hurried transmission.