We are repeatedly asked by "True" FTA hobbyist why Satellite AV does not carry a LNBF for circular 11.7 - 12.75 and when I ask them what FTA channels they will be watching .... the line gets very quiet .......
Maybe someday there will be FTA channels that are circular polarity in the FSS band, but at this time there really is no need for a FTAer to use this type of LNB unless one LNBF is going to be shared by a subbed Dish Network receiver and a FTA receiver.
I could be way off base here, but a FTA dealer who is carrying this type of LNBF is targeting business towards the hacking crowd.