I've got something transmitting an E1on constantly. Tried unplugging everything,still there. Took the batteries out of every thing I could find, still there. Put Home seer on a UPS, turned house main power off, still there. So I must have a lost and jammed palm pad or a neighbor with some problem.
Then it's likely to be a stuck button on a palmpad or stick-a-switch or a defective motion sensor.
There's no way to make the TM751 antenna directional. Doing anything with the TM751 antenna is not recommended because of safety issues.
I'd discount it being a neighbor. X-10 RF range is usually rather limited. Plus, you probably would have seen sporadic codes before this if they had X-10.
To be clear. With all power off, you get the signals via an MR26A plugged >I'm getting the RF signal through a MR26 and all of several TM751s that I
The power levels allowed for European made devices (which you use in Australia) are much higher than those allowed in North America. I stand by my original statement. Typical range here is 10 meters.
Here's a brief explanation of the different power levels allowed...
Since the MR26A is powered from the RS232 port there are no safety issues. You can replace the antenna with a highly directional Yagi but I'm not sure it would be worth the effort, especially if the culprit turns out to be nearby.
You would have to build the Yagi yourself - I d>I'm getting the RF signal through a MR26 and all of several TM751s that I
I had luck using an AM radio to track down a PalmPad with a stuck button. IIRC, tuning around 8 or 12 on the AM band gives you a very distinct-sounding pulsing noise that gets a *lot* louder as you get closer to the offending transmitter. Again, working from memory, the sound takes on a unique rapid three-pulse beep when you get very close.
If you've got a portable AM set, take it far away from the house, use a PalmPad with the button held down with a big spring clip so it's always transmitting and then tune it to an X10 frequency harmonic. Experiment with a controlled "emitter" in an open field and you'll get a good idea what to listen for. Then come back to the house for a "walkabout."
I was going to try mounting the AM radio inside a metal parabolic lamp reflector but came across the unit before that became necessary. You can probably map out the location by approaching the house from different compass points and noting where you first begin to hear the pulses. In my case, the search was easy because I could narrow it down to a few areas where Palmpads are usually found. With a five-year-old about, I don't think there's any area you can safely exclude!
I was locked into a certain path once the OP asked about a directional antenna. I was probably unduly influenced by the fact that I haven't listened to AM in about 20 years and that I have about a hundred of the
310MHz receivers and automatically reach for one when something along these lines comes up. Either that or I was misquoted by the media. ;)
An AM radio tuned to ~620kHz should work like a charm.
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