A coupling system for transferring a RF signal to and from a high-voltage cable (302) of a power distribution system is described. In one embodiment the coupling system uses a lightning arrester (314) as an element for coupling a RF signal from a RF modem (420) to and from the high-voltage cable. An...http://www.google.com/patents/US5864284?utm_source=gb-gplus-sharePatent US5864284 - Apparatus for coupling radio-frequency signals to and from a cable of a power distribution network
