Depends on what satellite you want to view as to which type of LNB you use. A lot of the transmissions aimed at the USA are circular polarisation, whereas most of the European transmissions are Vertical and Horizontal.
I have a universal LBN, will it help? , how will i set it up my receiver with the universal LBN . what satellites avalable in the US for my starsat receiver with universal LBN. i saw couple of satellites on the web like the "atlantic satelite" avalable in new jersey.