Don't know the Dish System. With DirecTV System we just have the Control Box Cable and a Single Coax from the Travl'r to inside to a splitter with one cable to the Bedroom TV the other to the Livingroom TV with the Power Inserter. Before switching to the Single Wire system we had two coax cables from the room, with one to each receiver.
Michelle & Ann
2018 Chevy 3500HD Crew Cab High Country DRW, D/A, 2016 RW39MB, Dual ACs, Auto Level, Auto Sat Dish, Stack W/D, King Sleep #, 17.5" Sailuns w/Disc, MORryde IS & Pin, Comfort Ride Hitch, 5.5 Onan, Res Fridge & Induction Cook Top