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Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here -- Ignore unavailable to you. Want to Upgrade?

To: MikeM54321 who wrote (2206)	10/22/1998 2:55:00 PM
From: Kenneth E. Phillipps	Respond to of 12823

"40% of copper line loops won't support the ADSL technology" I think this refers to offices which are too far from the telco central office to benefit from the technology. Ken

To: MikeM54321 who wrote (2206)	10/22/1998 4:53:00 PM
From: DenverTechie	Read Replies (1) \| Respond to of 12823

There are several factors limiting ADSL on copper loops. Attenuation dominates the factors limiting ADSL performance - the distance from the CO or DSL serving location. Other factors include crosstalk and impulse noise. Not only that, but copper loops with loading coils on them cannot be used until the coils are removed and the line tested (lots of expensive work) The 40% figure is debatable. If all you want is 1.5 Mb/s service, I'd say you can reach 80% of the lines (up to 18,000 feet). The normal "carrier serving area" that most phone companies design to now extends 12,000 feet and would reach about 50% of homes. That enables speeds up to roughly 6 Mb/s. Who's taking 6 Mb/s service for home use now? I rest my case.

To: MikeM54321 who wrote (2206)	10/22/1998 6:23:00 PM
From: mrknowitall	Read Replies (2) \| Respond to of 12823

Mike - like all technical things, it depends - specifically on things like where you live, where the wire center is, where the CO is, how old the cable is, how many pairs are non-loaded, what the electrical parameters are, etc., etc. There will be parts of the country where you simply won't get these kinds of services on the local loop. That limits the market from a logistics standpoint. Let's say you run a business and you get the high speed access at your office. You find out you need to move. You then find out that to get that service, you have very few choices on where to move. Messy business, this bottleneck stuff. Mr. K.