After Kabel BW had postponed the frequencies in the summer, we did not have in the nursery Kabelreceiver compatible signal more. ARD and ZDF was just received yet. The private channels such as RTL, etc. were only receiving analogue without receiver. After the amplifier Vianco already got so many positive feedback, I ordered also an amplifier. What can I say, I have connected to the amplifier, and lo and behold, all the channels were suddenly again be received via the DVB-C receiver. Obviously parted just a few DB signal strength. I would recommend this product only. My daughter is very happy that she is back to a good TV picture.