Re: Signal Bridging Questions...

["Jeff Volp" <JeffVolp@xxxxxxx>]

There is no way to test either the signal bridge or the X10 signal strength
with just a multimeter.  The 4816H is really nothing more than a
series-resonant circuit comprised of 0.1uF capacitor and a 18uH choke.  It
presents a low impedance at 120KHz.

The problem is most likely due to electrical devices added recently that
either attenuate X10 signal levels, or generate noise that makes it
difficult or impossible for a receiving module to correctly decode commands.
The solution is to either identify and isolate the offending devices with
filters, or increase the signal levels.

I wrote a X10 troubleshooting series that should help:
http://jvde.us/x10_troubleshooting.htm

Jeff

"Keith Miller" <k.miller@xxxxxxxxxxxxxxxx> wrote in message
news:FlBrl.597653$yE1.556117@xxxxxxxxxxxx
>A few years ago, I added a signal bridge (
>http://www.smarthome.com/4816H.html ) to a friend's X-10 setup to deal with
>classic bridging symptoms (worked with 240V resistive load on).  Every
>thing worked great for several years.  The same symptoms reappeared
>recently. Cranking up the baseboard heat eliminated the problem so I
>assumed the signal bridge had failed & ordered a new one.  Installed that
>yesterday & yet the problem persists.
>
> I'm going back today & verify that the supply wires are hot, but assuming
> they are, I have a few questions:
>
> 1) Is there any way to test the unit with only a multimeter?
>
> 2) Should I just assume I was sent a bum unit & return it for another?
>
> 3) Any other possible explanations for this behavior?
>
> --
>
> Keith
>