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To: WTC who wrote (3790)	5/20/1999 1:02:00 AM
From: wonk	Respond to of 12823

WTC: QAM64 with its line of sight requirements (~26dB C/I requirement in the totality of the point-multipoint 2.5GHz system link budget actually is what produces the LOS requirement) is problematic into foliated residential areas. That has spawned some interesting CDMA cellularized approaches that require a substantially lower C/I. It remains to be seen if this approach overcomes the LOS requirement with a useful level of success. Could you expand upon this. Perhaps I am totally out of touch, but I thought the C/N requirement produces the LOS requirement. C/I is a later artifact of a loaded system. ww