My daughters house has a satellite dish with an old dual-throat LNB that has two cables coming out of it. Inside, there is a plate with two F type terminals.
I've seen lots of LNB's, both the old dual and the latest single throat types, but all seem to have just one cable.
What were these two cable beast used for? I'm assuming it is pretty old, and nobody would buy two set-top boxes or Sky boxes etc?