Power line comms X-10

[dhouston]

BPL (Broadband over Powerline) uses even higher frequencies - up to 80MHz.

• http://en.wikipedia.org/wiki/Power_line_communication

You might find Yitran's BPL (or non-BPL) PLC modem chips useful. Their design was selected for HomePlug's narrow-band home control application.

• http://www.itrancomm.com/