I searched around for awhile and didn't find anything. Just wondering if anyone knew if there were any rules with the AMA on the use of radio system for control like using exuhf/Tbs crossfire at Ama flying fields?

I haven't been to an AMA field in a long time and all this extra control stuff wasn't out or wasn't used extensively like it is now. the last time I had been to a field FPV was still not known about much and I had all my LOS stuff on spektrum so I never had to worry about this. I have been living lately where I don't need to use a AMA flying field and have thus changed some of my aircraft to fly on different systems then the usual stuff and just wondered if I might run into issues if I was every to go back to using AMA fields since I don't plan on living where I'm at forever.

Thanks