2 Receivers, 1 Cable...how to make it work?

[StngStlkr]

Here's the situation. I have a dual LNB DirecTV dish with a multiswitch in the attic. The problem is that the wiring at my new place is setup somewhat weird and the cable jack in the bedroom isn't wired into the attic. Instead it was wired into a splitter in a closet in an adjoining room. So the cable from the attic comes out of the wall, runs to a splitter and the signal runs from the splitter to a TV in that room, as well as, the cable jack in the bedroom. Well that works fine for cable, but not for satellite as the voltage gets screwed up and the even/odd channels go missing. What can I do, short of climbing into the attic and hardwiring the jack in the bedroom to the multiswitch up there, to get these two receivers to work independently of one another? I guess I need to "split" the signal from the main cable in the one room and be able to use it on the receiver in that room, and the receiver in the bedroom, without losing any channels. What piece of hardware is necessary for this as a regular splitter obviously won't work. TIA for any help.

[LDCravey]

Each satellite receiver must be directly attached to the output of a multiswitch. In other words, each receiver must "see" a multiswitch.

Even though you have two satellite receivers connected to the splitter, only one is actually connected to the multiswitch. The satellite splitter typically has one DC passing port and one DC blocking port (although some satellite splitters use steering diodes to control the DC voltage). The receiver connected to the DC passing port is the receiver that "sees" the multiswitch. The second receiver that is connected to the DC blocking port of the splitter is basically a slave to the other splitter. 50% of the time, the second receiver will work properly, and 50% of the time, it will not as the DC voltage is controlled by the first receiver.

If you have a multisat multiswitch, then this get even more complicated since there is a 22kHz square wave inserted onto the coax everytime you view the B satellite (@119 degrees) or the C (@110 degrees) satellites.

Run a new cable to the attic.