Frank Coluccio Technology Forum - ASAP Message Board

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Technology Stocks : Frank Coluccio Technology Forum - ASAP

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To: Raymond Duray who wrote (1132)	2/12/2000 10:10:00 PM
From: Dennis O'Bell	Read Replies (1) of 1782

Re: DOCSIS modems... Ray - the 30 and 42 mb/sec rates cited in the Toshiba data sheet are in fact the raw, physical bit rates for 64 and 256 QAM respectively and are standard for the downstream on any compliant modem. This doesn't include error correction coding or framing overhead. Head to head tests show much lower speeds, though I do not know why there should be significant variations if all modems are compliant! (I can imagine reasons, but don't know for fact which ones are at play.) Here are a couple links to test reports: tolly.com zdnet.com These tests are pretty light on technical details but are a start.

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