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Technology Stocks : The *NEW* Frank Coluccio Technology Forum -- Ignore unavailable to you. Want to Upgrade?

To: Peter Ecclesine who wrote (4788)	1/2/2002 12:23:01 AM
From: ftth	Read Replies (2) \| Respond to of 46821

Hi Peter, Ultra-DSL....ever heard of it? 250Mbps @ 1800 feet, 100Mbps @ 3500 feet is the claim. Appears that it is turbo-coded with some advanced crosstalk cancellation and 400mW transmit power books.nap.edu Google yields nothing about it that I could find. Probably costs $2000 per subscriber, and only about 15% of copper loops would meet the distance limit. Not clear whether it is just simulation results or prototype or what. John Cioffi (father DSL [he's the one to blame, Elmat]) was the lead contributor to that section of the book, and the list of reviewers is quite a who's who of the technology world. So it at least had some credibile eyes looking at it. Would require lots of new-bury copper to be useful on a widespread basis anyway, so its real prospects are grim regardless of whether it could be made cost-effective.

To: Peter Ecclesine who wrote (4788)	1/2/2002 2:36:02 AM
From: Frank A. Coluccio	Read Replies (2) \| Respond to of 46821

Hi Peter, re: "FDMA or TDMA would be used?" Actually, since this is a relatively grass-roots sort of thing, I was thinking of a slotted-Aloha protocol. Clean rooms schmeen ruins, max nix. I was thinking of a form of optical gradium dome (see Lightpath's <LPTH> story). You're right, though: Wireless Radio. I just knew that that's what was in the back of your mind! It's probably the way to go, right? On that note, I just got off a phone call with a colleague where I learned that 802.11b is actually illegal for commercial undertakings in Wales and other parts of Europe, which is something I'd been aware of but didn't focus on before now. I'm not even certain that it is entirely "legal" here in the United States, either. Is it? I mean, at one time in order to be "legal" here, it also had to be "regulated," no? What's up with this, can you say? Is this one of those cases where for the moment it gets lost in the temporal black hole of Internet dereg, but which might just as easily some day surface as a bugaboo "gotcha" item, where one should have known better, beforehand? Hmm. It wouldn't surprise me one iota. More seriously, thanks for the urls for Radiantnetworks.com and the reference to Vexcel.com. You've broadened my view of such modeling techniques to the point where I'm back to exploring my Ham Radio roots, my first Internet experience, which blossomed at 25 words per minute. Now, that was a real internet, and there was no spam at that time! Before there was this landline based stuff that we now refer to as "The Internet," my original 'net consisted of a bunch of folks on various continents who I knew by name, and by the viscerality of their their "telegraph fists." I.e., by their transmitting speeds and the cadences of their tones. Niether IPv4 nor 6 had anything over those cognitive hooks, which stick with me to this day. Those were the real good ol' days. Hey! I just realized that what we've been discussing here actually took place once before during my lifetime, about thirty-five years ago. (Late edit: make that thirty-eight years ago :( It was, and still is, called: Ham Radio. Come to think of it, my gang of teenage hoodlum radio bandits and license bootleggers actually did have antennas on their rooftops doing close-proximity hand-offs to one another. And how our televison-viewing neighbors in the early Sixties just loved us at the time. Holy Moly, if I only had a quarter for every TVI (television interference) filter that my parents assured our neighbors that I'd install on their Zeniths and RCAs of the time ... Happy New Year! FAC