ok so ive been licensed about 4 months and still kind of fuzzy on this. like i know NATO phonetics, alpha bravo charlie etc, but when is it actually required vs just optional? i was on a local 2m repeater the other night and gave my callsign and someone came back and asked me to say it phonetically, which i did, but then later i heard other guys just rattling off their calls without phonetics and nobody said anything

is it a band thing? like HF you need them but VHF you dont? or is it just when conditions are bad? i dont want to sound like im being overly formal on a casual repeater chat but also dont want to get in trouble for not using them when i should. my tech manual wasnt super clear on this

there's no actual FCC rule that says you have to use phonetics, it's just good practice when there's any chance your call could be misheard. on a clear local repeater with people who already know you, most guys just say their call straight and thats fine. where it really matters is HF when the band is noisy or during contests or nets where the control op might be logging dozens of stations and needs to get your call right the first time

the guy who asked you to repeat phonetically probably just didn't catch it clearly the first time, that's not a critique of you. honestly the more you operate the more it becomes second nature to just throw in phonetics whenever conditions seem even a little sketchy. after a while you dont really think about it

yeah same thing happened to me when i first got on the air, felt weird being corrected but it wasnt really a correction just a practical thing. i use phonetics basically any time im not 100% sure the other person can hear me perfectly. on simplex especially because theres no repeater helping boost the signal. HF i pretty much always use them because even a strong signal can have weird propagation doing stuff to it

one thing that tripped me up early on was mixing up ICAO and NATO phonetics not realizing they're basically the same thing lol, someone said ICAO on a net and i had no idea what they meant for a second