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To: Shawn Fisher who wrote (27)	8/3/1998 9:45:00 PM
From: Bernard Levy	Read Replies (1) \| Respond to of 48

Shawn: a) S-CDMA certainly allows operators to run their plant less cleanly than other modulation schemes. In fact, it is the only scheme that works on pure coax networks. For HFC networks, multicarrier modulation may be slightly better, but S-CDMa is not far behind, and is ahead of conventional upstream QAM modulation schemes. Some QAM schemes are advertised as ''frequency agile,'' which probably means they adapt to noise disturbances in the channel. b The advantage of HFC networks and cleaner plants is greater information carrying capacity. This will allow a migration to digital cable TV with 300 channels in the current TV spectrum, as well as new services such as video conferencing. Also, as the number of users grows, increased capacity will become important. Best regards, Bernard Levy