The DiSEqC switch will enable the user to select one LNB signal between 4 different LNBs of any type. The 4 input ports marked SAT1, SAT2, SAT3 or SAT4 are connected to the 4 LNBs, which may be on 4 different dishes, and the output marked OUT is connected to the receiver. The selection of the LNBs is done by choosing the appropriate Tone Burst A, B, C, or D in the menu of the receiver. DisEqc 2.0 Compatable.