Use a Strong and Sturdy antenna mount such as a tripod antenna mount , chimney antenna mount , peak of the roof eave mount.
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http://www.amazon.com . . Do Not mount the antenna so high that you are doing monkey swinging manuvers to get the antenna mounted. Do not fall off the roof. . If you feed the coax up through the mast , the coax will come out the top of the mast and connected to the antenna. No need to tape the coax to the outside of the mast.