I’m afraid I’m no radio guy but was a television person mostly, very little to do with the radio production directly. My first boss in engineering was a huge radio and HAM nut. I can understand the appeal.
Good luck with the tests and building. I know a little electronics but according to the dots, I am color blind. On top of that, my ASVAB way back when had my highest aptitude for electricity and electronics.
I scored a “picket fence” on my ASVAB, but I became a combat engineer (light, no construction, infantry-related type). So the ASVAB lied. I wasn’t so smart after all!
;-)