You are communicating by radiotelephone using the International Code of Signals. What is the correct method of sending the group 1.3?
Official USCG Answer & Rule Citation
Correct Answer: Option D — "Unaone decimal terrathree"
Standard maritime radiotelephone spelling procedures for the International Code of Signals require numbers containing decimals to be spoken with specific phonetic equivalents, rendering 1.3 as "Unaone decimal terrathree".
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