I'm often asked from various people to give my sign phonetically, I think nothing of it personally.
We all speak and hear diffrently there are people that for the life of me I just do not understand when everybody around me looks as me as if I'm deaf. Its got to be the tone or accents or maybe ADHD, who knows... but I'm only 26 (it may be 27 now I'm actually confused on this... happens every year... I'll say 26/7

)
There are also times when I'm asked to slowly relate my call phonetically

oops. I generally do it phonetically anways even on FM...
73 Kilo India 4 Yankee Hotel Echo
Just music to my ears

I would suggest looking into changing the pitch of the transmission as that has helped me alot, as well as speaker placment/angle.