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Technology Stocks : AUTOHOME, Inc

ATHM 23.43

-2.1%

Nov 26 3:59 PM EST

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To: Bob Zacks who wrote (588)	11/2/1997 10:10:00 PM
From: ftth	Read Replies (2) of 29970

<<...if my telephone line speed is 28,800 kps. I would still get 28,800kps with 1 meg /sec modem >> Somebody brainwashed you with some real B.S. I don't even know where to start.....your telephone line doesn't have a "speed" rating, it has an analog bandwidth that varies depending on where you look at it. End to end, it's about 3kHz, and within the subscriber loop portion it's on the order of several Megahertz. It's been this way for years and is the same everywhere. The 3kHz bandwidth can carry multi-tens of kbps of information within the 3kHz bandwidth due to modulation techniques and coding methods. xDSL achieves its higher bit rates because the subscriber loop is a higher bandwidth subset within your end-to-end telco channel. It requires an xDSL modem at both ends of the loop. If your line doesn't support the higher bit rates its because of noise (possibly within your house wiring), not because of a fundamental limitation in the telephone line itself. The modem itself will fallback to a lower speed automatically if the connection is too noisy. dh

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