There is a municipal wifi transmission antenna about .5 km from my roof. Can get a line of sight, but the antenna they are using is pointed downwards on a plaza and I THINK it is a panel antenna. I am approx perpendicular to it. Sorry I cannot get photos do not have the right equipment for that.
Have plans for several homebuilt antennas and some dish antennas available on the net. On the dish antennas is there any rough guide to which are best for the, is it, 2GHZ? frequency of wifi? Can the tv satellite antennas be modified for use? Or is another antenna better since I am not sure I can get precise alignment to their antenna. Others nearby appear to be accessing this transmission with simple home made cam antennas. Also I have a tree I might need to trim that seems to be covering a part of the field between me and their antenna.
I realize this is sketch information and will try to provide better later, if I can. They have been uncooperative in giving details of their setup because the really, contrary to the pr campaign, do not want people using it for free, only businesses.