Is there a filter I can put on a coax splitter so an injected IR signal doesn't get attenuated?
Working on this project at my mom's house:
She has a Tivo in her bedroom which she would like to watch in the Living room. I purchased a Modulator with built in IR "processor," IR targets, injector for the living room, etc.
The first problem was that I could not get the video to show up until I put an extra splitter outside the house, so that the bedroom and living room are on their own splitter, which is then attached to the main splitter which feeds the house. Slight loss in signal quality, but at least the modulated chanels now show up.
The problem I have is with the IR. First, I had to power the IR target locally. The modulator was supposed to be able to power it over the coax, but I guess it's just too far away. Oh well, at least it works.
However, it only works was long as the Tivo in the bedroom is not connected to cable. There is another splitter in the bedroom -- I need CATV into the tivo, and the modulator has to connect back to the wall as well to inject the new channel. I had a nice fancy 1ghz splitter, that didn't work. Dropped back to an old one I had lying around, it works as long as the tivo CATV is not plugged in. As soon as I plug it in, the IR stops working.
If I were working on a DMX or a video system, I'd say the input impedance of the Tivo is too low, and it's sucking the IR signal out of the cable, attenuating it to the point the modulator can no longer use it.
We have the same problem with X10 signal suckers, and solve it with filters.
Is there a filter I can put on the splitter so the injected IR signal doesn't get attenuated?
Thanks,
:Lee