From the Manufacturer

Are you frustrated because some of the X10 receivers in your home automation system are having trouble detecting powerline commands? Now you can give your powerline signals a huge boost with BoosterLinc™ Plug-In Signal Booster, an advanced plug-in module that detects all powerline signals on the line and amplifies them in real time. Unlike signal boosts that use 200V repeater amplifiers, using this BoosterLinc™ module allows for an immediate, absolutely delay-free boost, and dim and bright commands that work flawlessly. As X10 signals are sent, they tend to go everywhere within a home, rather than directly to the intended receiver. Along the way, they get weakened by distance traveled and items connected to the powerline. Computer gear and home entertainment products (i.e. televisions) are the biggest signal absorbers. Additionally, every X10 transmitter (including 2-way modules) will absorb X10 signals. The bottom line is that by the time the commands get to the intended module, they sometimes do not have enough signal strength to trigger the desired action. BoosterLinc™ Plug-In Signal Booster immediately recognizes every "bit" of X10 signal on the powerline, synchs up with the transmitter and co-generates a transmission, in real-time until the end of that bit's transmission. Traditional coupler/repeaters wait until a complete X10 frame/command is received and then co-generate the entire command while the original transmitter sends its 2nd (redundant) frame/signal. Installation couldn't be easier. BoosterLinc™ plugs into any standard 110V 3-prong AC outlet. It also features a pass-through outlet on the front, so you can still plug in an additional device (pass-through outlet has no automation features). BoosterLinc™ also provides a small diagnostic LED that illuminates to let you know that the unit is powered; it even flickers when X10 signals are being amplified for easy troubleshooting.