Have the part bought because I wanted to connect an extra receiver to my system, but only two already occupied cable had. That's why I kicked my normal switch and replaced by the Unicabel part. Went almost anhieb.Wichtig: Switch is operating stand-alone only with an external power supply, (should be stated in the online description for any buyer). I had guessed and ordered PSU on Amazon. Have one of my two coaxial cables used for power supply, and distributed over the other cable distributors with the signals. Note for Unicable newbies, as I'm also a: to the receivers, the frequencies and the corresponding SCR addresses must be set. The assignment SCR address / frequency is independent voneinader adjustable and has the determination on the switch correspond. The default values in my receivers had not agreed with the definition on the switch, which was not equal noticed. After the appropriate manual correction everything went well.