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The 'other' mobile phone technology used in Australia. While it
replaced the old Analog network, it is important to note that this is
indeed a true digital system. Reputed to have better coverage than
GSM, especially in regional areas.
In order to carry many conversations over one frequency, it sends all
communications in groups of bits mixed altogether, but tags each group
belonging to a specific communication, with a different code. At the
other end, each communication can be reassembled in the correct order
based on the unique codes attached to certain groups of bits.
The two main providers of CDMA in Australia are Telstra [1] and
Hutchinson Telecomm/Orange/Three. The Spectrum that has been allocated
for use is 800Mhz. Calls start at 9600bps, then are 'spread' to attain
around 1.2 Mbps.
See also TDMA [2], SpreadSpectrum [3].
Links:
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[1] http://melbournewireless.org.au/?Telstra
[2] http://melbournewireless.org.au/?TDMA
[3] http://melbournewireless.org.au/?SpreadSpectrum
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