can be added another spent the first multiswitch multiswitch to split the cable?

I just installed a new DirecTV DVR and can not receive the signal from the second tuner. I do not want to run a cable all the way from the original multiswitch and do not know how to divide cable.

the only way is to run a cable to the multi switch. The receiver sends a signal to low voltage for the dish 13 or 18 volts, it depends on the transponder's trying to access if you were to add a separator it would cause a short and do not see any signal from the satellite

3×8 multiswitch