We are currently at Elma RV park and have the opportunity to ask park managers if you like?
Btw ... it is a Passport park ... if that would make a difference also!
Taking a more purposeful look at the sites there are a few trees around the edge and maybe one at each site...some young...some older and some old!!!. Good possibly be a good test!
ps..is this the dish that you push a button and it locks into the satellite(s) on its own? We are looking at something like that and would be interested how yours works? Thanks.