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Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here
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To: axial who wrote (7115)5/26/2000 3:40:00 PM
From: Bernard Levy  Read Replies (1) of 12823
 
Hi Jim:

Actually CDMA is robust against interferences,
but it is not particularly spectrally efficient
(it uses phase shift keying). S-CDMA spreads
a QAM signal, but the QAM order is also less
than TDMA cable systems.

For data, the CDMA/TDMA debate is essentially
a red herring, since the efficiency of the
mutiple access prrotocol is probably more
important.

Best regards,

Bernard Levy
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