Darren New wrote:
> Invisible wrote:
>> Really? That's interesting... I got to the CDMA article *from* the GSM 
>> article. o_O
> 
> Sure. The old analog phones used FDM (Frequency Division Multiplexing), 
> and GSM uses (I think) TDMA - time division multiple access.  There's 
> also phase-division multiple access, as well as various combinations 
> thereof.

Hmm, OK. Apparently,

"The modulation used in GSM is Gaussian minimum-shift keying (GMSK), a 
kind of continuous-phase frequency shift keying. In GMSK, the signal to 
be modulated onto the carrier is first smoothed with a Gaussian low-pass 
filter prior to being fed to a frequency modulator, which greatly 
reduces the interference to neighboring channels (adjacent channel 
interference)."

So not CDMA at all. Weird...

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