before antronix I wasn't able to get local twc channels upstairs or in a remote garage, now I can. no bad effects on internet or phone that's a good thing. highly recommend to twc users.
I have six TV's hooked up to a non-amplified 8 port antronix splitter and was losing 10dB per port. Most of the time I could get every channel but bad weather, WiFi interference or other electronics would make certain channels hard to watch. This boosts the signal enough cleanly to make the channels come in free and clear.