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RazaH
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re: Under the Hood: Blackberry wins handset data-rate bakeoff
RazaH   11/26/2007 11:39:05 PM
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Hi, can I ask which uSD card you used with BlackBerry 8120?. Thanks

RazaH
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re: Under the Hood: Blackberry wins handset data-rate bakeoff
RazaH   11/29/2007 5:49:39 PM
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I think you have RAZR2 description incorrect - USB performance numbers are those of a USB-HS device but only GSM version of RAZR2 (V8) has USB-HS - but it has 2GB of internal memory but no memory card. 3G version of RAZR2 (V9) has some internal memory and a removable card but does not has USB-HS so it can not get the throughput rates you are measuring.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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