[Chuck v]

If you wish to watch two separate programs using two satellite receivers you do indeed need to have two coax runs from the dual LNB dish, one to each of the receiver locations. The AV selector box that came with your coach can send one of four base-band AV sources to each of four display locations, but this handles only the OUTPUT of the satellite receiver(S) not the input RF from the LNB(s.)

Note also that the AV switch box does not do HDTV (only composite...) so that is another reason you might want to co-locate the satellite receiver with an HDTV display. I believe that David Bott has done some rewiring on his coach that allows HDMI routing to his displays...

With our own coach, we use only the dish antenna that came with it (not an in-motion style) and have never needed simultaneous, separate programing for just the two of us. Granted, you might want to see sports programming on the 'patio' and another person watch a cooking show inside or some similar bifurcation of needs, but that sort of dual programming use is much harder to envision while en-route.

If you received an AV schematic from GulfStream, I would definitely appreciate getting a copy via e-mail...

Chuck