After reading the horror stories on here I was worried that my installer wouldn't know what he was doing. This couldn't have been further from the case. The tech who came out was training someone and I guess was starting up a new subcontracting firm here in Columbia and had come over from St. Louis. The tripod I had set up did not work because it was like 6" too close to the building and the installer suggested using c clamps on the railing because I am not allowed to drill. That worked perfectly and he used 2 monopoles to steady it and I have most signals in the 90s and lowest signal is 84. Awesome job!