so i just got my technician a few months ago and im still figuring out when exactly youre supposed to use the NATO phonetic alphabet on air. like i get that you use it for callsigns and stuff but do you have to do it every single time? i was on a local repeater the other day and just said my callsign normally and someone came back with a snarky comment about how i should be using phonetics. but then i hear plenty of other people just say their callsign normally too without spelling it out each time.

is there like an actual rule about this or is it just a courtesy thing? and also does it matter if you use the actual NATO ones vs just making up your own words like some guys seem to do. heard someone use "Kentucky" for K the other day instead of Kilo

yeah theres no hard rule that says you HAVE to use phonetics every single transmission, its more of a situational thing. if the band is clear and youre on a local repeater with decent audio, just saying your callsign normally is totally fine. phonetics really shine when conditions are rough or theres qrm or you just cant tell if the other station copied you correctly.

the NATO alphabet exists because those specific words were chosen to be distinct from each other even through bad audio or heavy accents. that whole process took a long time to develop actually. so when someone substitutes Kentucky for Kilo it mostly works but you can run into confusion, some words people make up sound like other letters when the audio degrades. im not gonna be the phonetics police though, most of the time context makes it obvious enough. that guy on the repeater was probably just being a bit precious about it honestly.

same situation here when i was starting out, got a little grief about it too. what i do now is i just always use phonetics for my callsign the first time i id, then after that in the same qso i might drop them if conditions are good. seems to be what most people actually do in practice even if some folks act like its a federal offense not to use them every time lol