Electro Magnetic Interference (EMI) performance is, other than electro acoustic performance, one of the most important aspects of designing headsets specifically for cellular phones and other portable handset applications. A system to measure the EMI performance of headsets was studied, built and tested with almost two dozen headsets. The results of tests show that the differences of cabling methods greatly influenced both EMI and crosstalk performance. The impact of different cable shielding conditions was simulated and is documented herein
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