How-to-ground-antenna-attic, forum discussion: i read a post here on making sure to use a grounding rod and to also bound it to the other rod. here is my setup. i have a uhf/vhf antenna in my attic. i will bring the cable .... To install a tv antenna in your attic, you have to go into the attic. my attic access door is fairly small. so small that the antenna was too big to fit through! not a problem, though. i just took the plastic ends of one side of the antenna and shoved it through the access door., how to select the best tv antenna and equipment for the attic. the first thing to understand is that a tv antenna of the same kind will always work at least a little better mounted outside above your roof line.