Possible, but, I think, you'd need the splitter or block, and use the FTA to run the polarity. Or twist the lnbf, and remember that your polarities on FTA are opposite. I can't think of any other solution. Seems Motorola put the capability to change this in 922's, but not the 410's. [???] Had an Idea of adding a 410 here, so now, I know of a small problem.