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TOP SPEED LIMITWhat sort of transmission speeds are you likely to get if you buy one of those new 56 kilobit-per-second modems? Not 56K, but probably in the high 40s. MindSpring Enterprises, an Atlanta-based Internet service provider that is testing U.S. Robotics' X2 technology in the Southeast, analyzed 1,900 calls in early March. As the chart shows, most connected at between 44K and 48K. Noisy phone lines, the same factor that prevents conventional modems from reaching their rated top speed of 33.6K or 28.8K, are the chief culprit.
By STEPHEN H. WILDSTROM
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Updated June 15, 1997 by bwwebmaster
Copyright 1997, by The McGraw-Hill Companies Inc. All rights reserved.
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