I'm a newcomer to X10 (although I used to play around with Radio Shack Plug-N-Power units many years ago, which I understand are the same thing). I recently Bought a kit consisting of the HR12A Palmpad, TM751 Transceiver and the LM465 lamp module. Now for my problem.
I plugged a lamp into the TM751, and it worked fine. But at the other end of the same room, (next to our TV) I plugged another lamp into the LM465, and it started blinking once every second or so. I had an old Radio Shack appliance module laying around - and did the same thing. Both units respond to an "on" command. But when you turn them off, they revert to the blinking behavior.
I suspect the problem may be linked to our Dish Network satellite dish. The box on top of the TV is connected via a phone line to a box that's plugged into an AC outlet. At the other end of the room, a similar box, also plugged into an AC outlet, is connected to the phone line. I'm guessing that the Dish Network set-top box uses something like X10 signals to talk to the box that's connected to our phone line.
Is there some kind of filter I can use to keep the two separate?