Abstract
System configuration of multiple MPEG-Transport Streams transmission with one digital carrier for cable distribution is presented. In Japan, Broadcasts via Satellite is planning to go digital from the year of 2000. Cable TV subscribers should be able to enjoy the wide variety of digital services as well as direct-to-home reception viewers. We have conducted two kinds of trials for BS digital relay service on cable TV network. Using transport streams multiplexing frame, plural Transport Streams can be encapsulated and carried with single conventional 64QAM modem for 6MHz channel spacing. Also, we demonstrate the newly developed 12MHz bandwidth 64QAM modem to relay the whole digital signals over one BS transponder.