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8.3. CDMA2000

Besides GSM, Code Division Multiple Access (CDMA) is also a popular cellular technology used in the U.S. CDMA uses Spread Spectrum Technology (SST), which allows a unique code to be attached to each conversation and to spread conversations across wide segments of the cellular broadcast spectrum. Each receiver decodes on the same frequency segment as the sender. Because multiple signals can be transmitted over the same spectrum, CDMA allows many more conversations to be possible compared to other cellular technologies.

CDMA is used by Sprint PCS, Verizon Wireless, and AT&T. CDMA2000 is the latest generation of CDMA technology and is used on Sprint's PCS Vision network and Verizon Wireless's Express Network.


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