At the moment I'm only using the 741 for C band. I am using a 33" motorized dish for ku band, with a quad circular/linear lnb, so I need to drive each motor independently with the same receiver. I have had no issues when using the S9, but when I try to move the ku dish motor on the X5, the c band dish will move as well. My ku feed runs into the 22khz side of the switch, and the v-box for the c band runs into the 0khz side of the switch, from there to the X5. The 33" dish runs through the diseqc switches #3 for linear and #4 for circular, while the 741 C band is designated to diseqc swith #1.