Channel usage

[Terence]

> GSM uses TDMA (not SS at all), I think CDMA uses DSSS. 

google found some good refs:

http://www.sss-mag.com/ss.html

http://cas.et.tudelft.nl/~glas/ssc/techn/techniques.html

http://www.qsl.net/n9zia/wireless/dsss.html

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Terence C. Giufre-Sweetser

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