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Strategies & Market Trends : ahhaha's ahs -- Ignore unavailable to you. Want to Upgrade?

To: E. Davies who wrote (2392)	5/31/2001 6:46:42 PM
From: Frank A. Coluccio	Respond to of 24758

Hello Eric, I believe that somewhere along the line I indicated that I wouldn't trust any such claims until they were corroborated by a trusted source. In any event, there are other 'experiments' now under way by other vendors, some of whom claim to be able to deliver symmetrical SONET-like speeds and beyond over copper tp loops, which have yet to be validated in field trials AND, at the same time STILL BE compliant with FCC electromagnetic and radio frequency interference [EMI/RFI] standards. It's possible to drive signal strength to super-100 meter distances at the higher speeds that were cited, to be sure, although I'm not quite sure where the practical cut-offs would be. But the consequences stemming from spectral power distribution issues at the frequencies that would necessarily be employed would prohibit their use due to cross-talk - i.e., spill over into adjacent pairs in the cable bundle and to other appliances such as medical devices and regular radio/tv receivers - that they would almost certainly cause. In contrast, certain strains of VDSL, and now proposed Ethernet over VDSL are able to deliver up to ~50 Mb/s, but at distances that would dictate a fiber to the neighborhood design. Usually under 3000 feet, and decreasing speeds with increases in distance. FAC