Connect the three satellite lines on a hub to a 1000.4 dish (or 1000.2). Feed the input on the LNB from a fourth orbital. Each of the three outputs of the DPP switch at the LNB can be any two of the eight orbital/polarity combinations possible. The fourth orbital would not be possible if the DPP switch simply passed the first three orbitals as if they were DP feeds (DP stacks the two polarities of the same orbital location). The Duo node needs to be based on the tuner's needs. Two hoppers, six sat tuners, six feeds from the switch at the dish (three DPP feeds).