I am earnestly attempting to get DirecTV installed at my house, but I have a couple of complications. First I have alot of trees around the house, limiting dish locations. Second, the supervisor (wife) does not want any holes punched in our fairly new roof. So this has limited me to either getting a non-pen roof peak mount, or locating the dish back behind the garage, which leads me to my question. Behind the garage is a fenced off dog run. Rather than install a separate pole, could I bolt (u-bolts?) the mast to an existing fence post? (see attached pic) The post is 2-1/4" diameter and ~ 5-ft tall. Thanks in advance for any opinions.