we don't have your same dish, but your dish has 3 LNB's. For 2 receivers you should need 2 cables. But that depends on how your RV is wired. On our 2004 DP we also could not watch separate channels in the bedroom. The solution was to put a splitter in the front where the cables from the dish come into the coach, then cable that into the Winegard distribution box. Then in the bedroom, put in a diplexer before the receiver. This prevented us from having to run new cable from the dish to the bedroom receiver. It was a lot less expensive. When I access the Directv in the bedroom, I use the input button on the remote. Sats2Go in Houston TX set it up for us. There is also a great RV Satellite company in Junction City OR called Advanced Satellite. They specialize in RV satellite systems and installed many satellite systems in Country Coach RV's.
