Alters nothing unless there is a way to tie the C and Ku together and break them apart again. The 922 requires a seperate line for C and a seperate line for Ku. The FTA receiver requires a single line in. This makes 3 lines. The C, Ku linear and Ku Circular can be grouped into one line with a DiSEqC Switch which the FTA receiver controls. Instead of splitting the Ku linear line simply hook up to the other port on the lnb. The C band line would have to be split in my mind prior to the DiSeqC. I am going to look at the link Sadoun provided.