I am curious I have a I-max on 2 10' fence poles mounted at 20' to base of antenna. I am moving to a new home and plan to construct the same antenna setup but place the bottom of the mast on my back porch roof and secure it to the peak of the home and where ever else needed to secure it. My porch roof is at 23' and the peak of the house is at 46' so after finding this out I want another 10' pole added to put the base of the I-max at 53' above ground and the mast would only be 7' above the peak of the roof. I see no reason that this is a problem but was wondering how much of an improvement will I see over my setup now at 20' compared to 53'? I know it will be better but by how much? My S-2016 folded over a few days ago in the wind so my I-max is back and seems to be the only antenna able to take the windy city short of $250+.