Cheers for those precious tips m8.
So a C-band scalar ring for an offset dish has to be elliptical rather than round?
is this one conical (elliptical)?:
also, on the link you provided I see the C band lnbs often used off centered from the main focal point of the dish, what's up with that? Is it for dual satellite reception pretty much like a hotbird+astra monoblock?
_http://www.satshop24.de/satshop24_s/c_band_und_ku_band_dual_nachruestsatz_fu.html
another question: could you kindly explain the difference between R/L and V/H? is there both things in C-band?