No I don't mean the theory of how it works, I mean how does it work in practice. The thing that brings this up is that I just hooked 2 TV antennas in parallel using a standard TV splitter. The way a splitter works of course is that you hook a signal source up to the input connector and it comes out the 2 (or more) outputs a little over 3 dB (or more) down. In this case of course I hook the sources (the 2 antennas) to the output connectors and get the 2 signals out together on the input connector. The question that came to mind is; Does this work the same way? Do the output signals come out a little over 3 dB down? My first thought is that they do. In fact thinking about it I suspect that a signal applied to any port will come out the other 2 ports a little over 3 dB down. But I don't know that and don't have the equipment to test it. So, does any body know?
Bill