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Technology Stocks : Intel Corporation (INTC) -- Ignore unavailable to you. Want to Upgrade?

To: milo_morai who wrote (166427)	6/16/2002 3:47:56 AM
From: dumbmoney	Read Replies (2) \| Respond to of 186894

OC192 does the same rate as this technology and it's barely off the ground due to distance limitation due to dispersion. Apples and oranges. OCxx fiber is serial on-off modulated data. Cable (HFC) is analog, frequency multiplexed. The most common digital cable modulation (64 QAM) delivers 27mb/s in a 6Mhz channel. Some use 256 QAM, for 38mb/s in a 6Mhz channel. Two-way upgraded cable systems are typically 750Mhz or 860Mhz (the first 54Mhz being allocated for upstream, the rest downstream).