In Part I of “Testing on the EDGE” in the February issue of EE, we looked at some of the basics of GPRS and EDGE technologies. Part II focuses on what is needed to test a GPRS or EDGE mobile radio.

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With spectrum issues plaguing the US sector and European carriers looking for ways to supplement wideband CDMA (W-CDMA) services, the EDGE air interface has once again taken center stage as the next ...

Diverse well describes the myriad digital modulation schemes used in modern voice and data communications. The alphabet soup of terminology extends well beyond the familiar QAM and GMSK fundamentals ...

Continuous Phase Modulation (CPM) constitutes a family of constant-envelope digital modulation techniques in which symbol transitions occur with continuous phase trajectories. By maintaining a ...