Spent a pleasant afternoon on the terrace with an old laptop, a WiFi USB dongle on a lead, a sheet of aluminum, a collander, a strainer and a few other hemispherical objects. Signal gain improvement with even the most haphazard assembly was over 10% but signal quality improvement was far greater. Then Mrs OFSO came up and wanted to know what I was doing with her kitchen implements so I had to pack it in.
A great way to spend yet another cool grey Spanish summer day.