Just added a second RFX-150 to a system yesterday that was working flawlessly for 2 weeks - I needed another 6 feet of range. Controlling 2 each DCT6412 Cable boxes in the same Rack. When I hooked up the second antenna I LOST all of the IR routing. Wired one in the mini jack port and the other into the phoenix connector. Then wired them both into the phoenix connector - same problem. The second RFX-150 is wired with CAT5 wire approx. 75'. If I unplug the second antenna the IR routing comes back. Four phone calls to Universal Remote Tech support later I pull the RFX-150 and install a RFX-250 - golden. It just took 6 hours and 3 different techs telling me you either can't run the antenna on CAT5 or we have issues when using CAT5. This was after being told that you should use CAT5 for the antenna - 7 classes at CEDIA, the Universal booth and Eric Johnson saying you can wire one antenna into the phoenix connector and one into the mini jack.

Hello RTI - Here I come