These are professionally made, economically priced antennas. This design has the highest strength / weight ratio. Wind tunnel tests prove that they will stand up to high winds.
These are high efficiency antennas whose gain figures approach the theoretical maximum for the individual curved surface area.
Technical Specifications:
http://www.stelladoradus.com/pdfs/2.4/p ... 20SD24.pdf
Mine is basically brand new.
Asking 50euros obo.
Brad 0621 621 629