Direct rain fade is not supposed to be notable until well above 2.4GHz.I’m only certain of some of the reasons as to why: Helicals are ‘unbalanced’ antennas, which are much easier to connect to wifi cards than ‘balanced’ antennas like yagi-uda’s.Helicals can be made with only household parts, a hot glue gun and a soldering iron.I have found 2.4GHz helical antennas are both very easy to make and very effective: Ignore the bad mounting position shown here, you don’t want metal veranda poles in the way of your antenna :) Summary To connect over this distance I used a variety of home-made antennas: For the last few months I have been in a rural Greek mountainside village, using internet from a shared wifi AP (access point) in another village 1.2km away.
