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

To: Frank A. Coluccio who wrote (4320)	6/29/1999 2:19:00 AM
From: Darren DeNunzio	Read Replies (2) \| Respond to of 12823

Qualification Offered - Regarding Teledesic Usage and Latency First, lets assume, "that Teledesic gets beyond it's current crisis-of-spirit stage, and actually comes to fruition without an umbilical cord wrapped around its neck." I attribute your skepticism regarding the statements made by Teledesic to a long history of over inflated, self-proclaimed promises published in company authored press releases. DSL predictions come quickly to mind. I expect Teledesic to out perform the current expectations, by a very comfortable margin. This prediction is partly based on my respect for Bill Gates, and would recommend reading his book, "The Road Ahead". Latency in LEO will be attributable to processing, not propogation. System like Teledesic that use high speed laser based switching, will have latency near that of terrestrial based systems. Many do not understand that light travels through a fiber optic cable around 2/3 the speed that light will travel in the vacuum of space. Teledesic expects typical round-trip latency to fall between 40 and 100 ms. A round trip of 5000 km can expect delays around 150 ms and a round trip of 500 km at about 20 ms. LEO delay will be comparable to terrestrial-and generally below the 100 millisecond threshold for voice. While a satellite system [of today] typically does not outperform a fiber optic network, there are instances where the number of hops between routers and switches can be reduced by a satellite system. If you design a system with fewer routing points on the network, it can have less latency. As for your statement ... "Your statement would lead the uninitiated to conclude that they will have access to super-T3 transmission rates on the downlink all to themselves, on an on-demand basis." Since Teledesic will not sell bandwidth directly to the consumer, who are the uninitiated?