Powerline communications network employing tdma, fdma and/or cdma

摘要: Communications apparatus is disclosed which adapted for use with a mains electricity transmission and/or distribution network, and includes signal reception means (232), frequency conversion (200-208) converting the of transmitted or received by to facilitates improved propagation on network. Preferably operate according telephony standard uses relatively high carrier (e.g. CT2), usable convert having lower frequency.