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Non-Tech : Amati investors -- Ignore unavailable to you. Want to Upgrade?

To: polarisnh who wrote (30464)	2/4/1998 11:36:00 AM
From: Larry Brew	Respond to of 31386

Steven, << adsl questions >> Thank you for your very thorough explanation. I'm one of those 20% way out in nowhere. Bad for me, but of little consequence to market capitalization. Good to know my suspicions are realized and that streaching the capacity of central offices is in consideration. Thanks again. Larry

To: polarisnh who wrote (30464)	2/4/1998 12:55:00 PM
From: JW@KSC	Read Replies (3) \| Respond to of 31386

Steven R. & Larry Brew, Great write-up Steven! Thanks for helping Larry out.... Hope you don't mind if I make one small correction. As you may know the bandwidth limitations are not caused from the transmission lines themselves, but in fact are limited by filters at the edge of the voice network, as well as loss associated with splicing. Actually Bandwidth limitation is caused by the transmission lines, The size of the pipe and distance, the copper twisted pair having 1.1 Mhz, of which we only utilize 4Khz for voice. Most Loading Coils are at 18,000ft from the CO which were put in place to boost the voice signal for extended distances. Apprx 80% of the POTS in the U.S. is capable of ADSL transmission, as surveys have shown 80% have Loading Coils at 18,000ft. 60% of the U.S is within 12,000ft of the Company Office A problem I seem to have trouble resolving with ADSL is all that copper. Maybe you or another can put it to rest. Copper, being a crude transmission line seems to me that it would offer significant Xl and resistive losses during transmission. Won't the inductive properties of these lines offer a problem over longer distances at higher frequencies? Transmission lines have long since left these aged memory banks. :-) Larry Larry, I thought you might like to know how the Magic works. This may help if it's not to technical. Message 555777 And for VDSL Message 2274306 And from the Man Himself or A Word from our Sponsor! internettelephony.com techweb.com internettelephony.com Best Regards, JW@KSC