Well Skip, looking again at the article, it says the 30cm version "starts working" at around 47dBW (transponder power, at "footprint" centre), which is around the same as a Sky minidish (at 40cm, the minidish has a higher gain, allowing a "safety margin" for cable and bad alignment and variable rain attenuation losses, etc.
I think suggesting this is "more efficient" than a conventional dish is a bit misleading! |