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Enhanced Data rates for Global Evolution

EDGE uses the same spectrum allocated for GSM900, GSM1800 and GSM1900 operation. Instead of employing GMSK (Gaussian Minimum Shift Keying) EDGE uses 8PSK (8 Phase Shift Keying) producing a 3bit word for every change in carrier phase. This effectively triples the data rate offered by GSM. The use of EDGE enables GSM to increase the data rates that can be offered to users of the GSM spectrum, aligning the technology with 3G (Third Generation) systems.

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