X10 makes an RF repeater but I have no
information on how well it works. The cm15a
interface is not known for long distance RF
receiving. Try the antenna Horizontal
sometimes that helps. Also I have done an
antenna mod thet adds great distance, but
kills the warantee. Found on:
www.accessha.com Others have used a third party all house
code receiver in place of the cm15a's
receiver.