I currently have a H890 and the display is starting to give me problems. (grey display, garbled text, lines, etc.). I use this remote to control 2 receivers. They are both in a cabinet downstairs. One controls the home theater and the other controls audio to the living room and my office, so I need the RF function. I would like to use the 1100 downstairs and take the 890 upstairs to control the audio. My question is can I use both remotes and use just one RF wireless extender, or do I have to get another RF wireless extender? Has anyone tried this?