I don't know much about JSON, but I learned some while writing my rocket launch tracking macro. And I thought this might be a good chance to use it.
This macro takes any input A-Z or a-z, uppercases it, then looks it up in a JSON variable that holds the phonetic alphabet. If nothing else, it's a pretty easy-to-follow example of how to use JSON to store and retrieve values.
(Being a rookie JSON user, I imagine there are better ways to structure what I created…but it works :).)
21)NATO Phonetic Converter - JSON.kmmacros (6.9 KB)
-rob.