njkat@eclipse.net (gene martinez) hath wroth:

>For the x-10 you can get a capacitor that you put accross the
>different phases.. If you do a search you might find something.

It's more than just a cazapitor. It's a 120KHz tuned ferrite xformer
between phases. The xformer (passive phase coupler) passes the 120KHz
while blocking the 60Hz. About $2 in parts. There are also active
phase couplers, that decode the commons and regenerate (re-transmit)
the commands on the other phases. These are more expensive.

X10 couplers:
| http://www.smarthomeusa.com/Shop/Lig...hase-Couplers/

X10 power line networking FAQ:
| http://www.smarthomeusa.com/Shop/Lig...rs/Item/CP000/

They won't work with power line networking devices, which use (and
trash) frequencies between 4 and 20MHz. The higher speed devices use
an even wider bandwidth. It would seem that someone would make a
HomePlug range extender or repeater, but I couldn't find a shipping
product.
| http://www.homeplug.org/en/products/products.asp

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