The antenna was bought in 2002 from Christian Kaeferlein at a price of about Euro 1200 all included. Mounting was a matter of 15 minutes, however, with four hands.
It has been removed from this site in spring 2007, but I leave this information here for anybody interested in this design.
and has a diametre of 1,30m = 4 ft. It serves the bands from 80m to 17m.
Under good conditions it is suitable for worldwide BPSK work on 20m, however, on 80m its reliable range is no more than about 500 miles due to its reduced efficiency, due to its physical size.