My current SWM system has an SL5S LNB on what the installer described as a Ka/Ku dish which is on the edge of the roof. It has one cable ( approximately 20 feet) coming from the dish attached to a splitter in a box on an exterior wall of the house. I know that I am limited to 8 tuners using this system but I wish to use more than 8 tuners. For this reason, I purchased a SL3K4NR1 and a SWM16 along with the 29V power inserter. Note: I live in Florida where I get the Orlando locals and have read that I do not need the 110 and 119 satellites- thus 3 LNB should work. My first question: Will the SL3K4NR1 work on the arm of the dish that the SL5S LNB is installed? that is, can I just replace the SL5S LNB with the SL3K4NR1? I realize that I need to run 4 cables from the LNB to the SWM16 and then 2 cables from the SWM 16 to two splitters in the exterior box. However, I am undecided where to mount the SWM16. My second question: When a SWM16 has to be mounted externally, is there a typical location for its mounting? that is, on the dish mast? or on a wall near the dish? or on the wall near the splitters? Thank you for any input.