I'm excited. Had not thought of that still can rauskitzeln so much from the signal the device. Before a snowy picture (TV device is in the attic and the entrance for the signal is in the cellar) now a much better image without gekriesel / snow. The amplifier is connected to the cable / connector from the wall (with me in the attic) and at the output (2 pieces) infected the cable to the TV. I have tested it with a 5m long cable for TV out and am absolutely satisfied. Important. The amplifier needs a power outlet nearby, as there is only enhanced when it is connected to the power. Am satisfied and would buy it again.
(However, I tested it only with one device at the exit)