Here is an example of coax ground block
http://www.amazon.com/Channel-Master.../dp/B000BPEZKK. And go to Home Depot or Lowes to size up the grounding hardware for the mast mounting that the antenna is mounted to. Use #8 copper ground wire , the ground wire is hard copper bare wire that is made to be exposed to and will last a long time outside. And all so size up the grounding hardware that is made for the purpose of grounding , different types of clamps and metal straps and etc. . The best place to have the coax ground block is where electric service for the house is at and connect to the electric service ground. The #8 ground wire will also go to the electric service ground. The #8 ground wire should have gradual bends when routing the ground wire , no sharp angle bends , lightning does not like sharp angle turns , lightning likes to travel along nice smooth gradual turns. You can also connect the coax ground block and the #8 ground wire to the cable tv or satellite ground wire. There is a grounding hardware that is a split bolt , real handy for connecting ground wires to geather. You unscrew the nut part of the split bolt , slip the split bolt over a ground wire that way you do not have to cut the ground wire , lay the other ground wire/s into the split bolt and then screw the nut part back on and tighten.