I have converted the Opticum LQP 04 H Quad LNB my old system on digital or expanded. Since four receivers can be connected directly applicable to me now the old switch. It simply must be connected only the cable. The signal strength is almost 100% at about 20 m cable. I can only recommend this LNB. One more note: The F-connector to the LNB can be best done with a tightening aid assemble as it somewhat narrow spaces.