Railing is part of common space. Can only be placed on area you have "exclusive use and control (deck platform)" and cannot extend beyond railing. The Co. that did the install will have the original paperwork filed with contract, DHA form, etc. if not this could be your out from Dish.
The original guy who came out was an actual DISH tech, I do believe (he came out in a DISH truck). The tech that repositioned it was an independent contractor. There is a DISH office very close to me, but I'm not sure where it is (I live in Arlington near the stadiums and Six Flags if anyone knows where the DISH office is).
The original tech gave me his personal cell number if the dish needed to be repositioned, but the number was out of service by the time it needed to be moved.