The X10 cameras and transmitter/receivers have performed horribly in my home. 20 feet and through one sheet of sheetrock seems to be too much for them to handle and the reception is terrible.
I would love to see some kind of plugin transmitter/repeater for X10 wireless cameras. It is sorely needed.
(note: I have tried all 4 channels and various antenna positions but nothing has helped)
Here is a link to an X10 video repeater:
http://kbase.x10.com/wiki/Extending_Wireless_Camera_Range (http://kbase.x10.com/wiki/Extending_Wireless_Camera_Range)