@hamchallenge #hamchallenge HC04S
I was given the call PA3ABA in 1977 at the time they ran out of PA0 callsigns. So they started a new block with PA3AAA being the first computerized call. It was fun getting on the bands with a PA3 prefix, everyone wanted a QSO. Then after some years they decided to change their policy. PA-PH was allowed with a 2 or 3 letter suffix, callsigns were free to choose but no PA0's allowed. I got myself PA4TU, it sounded nice in CW....