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Technology Stocks : The New Qualcomm - a S&P500 company -- Ignore unavailable to you. Want to Upgrade?

To: qdog who wrote (2749)	10/27/1999 9:29:00 PM
From: Clarksterh	Read Replies (3) \| Respond to of 13582

qdog - 2 bits per Hertz? Sure, why not? EDGE boasts 3 bits per hertz.<g> In all seriousness, in theory the move from effective BPSK to QPSK doubles the number of bits per hertz without requiring a significantly higher S/N. (the same is not true of the move from QPSK to 8-PSK and hence my sceptisism over EDGE). The only puzzlement is why the original cell standards (GSM and CDMAOne) left so many bits untapped. Undoubtedly there is a reason, but I have never figured out what it was. Another mystery is why HDR boasts of 2.4Mbps peak only. Why is the average lower? Any thoughts? Clark