Hi everyone, I have been living in the USA now for over 15 years. When I first came over I used my Uk call for a very short time 2/3 months as I understood I could following the rules. After this time as I was going to be a resident I took the USA exam and got my USA call. My question is so why are there people from the UK that have been here for a number of years using there UK call with a USA prefix? I think this is against the rules you should have to take the USA exam and get a USA callsign??