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Impact of security cameras on electromagnetic environment in far and near-field

Electromagnetic interference constitutes a serious problem for the design and operation of electronic and electrical security devices or systems because the impairment of the device function gives rise security complications. The complications may be associated with false alarms, errors in control of connected devices, image defects, losses of communication. The main purpose of the experiment reported here was to analyze and compare the level of the electromagnetic interference in a near and far field. In addition, the article also provides an interesting comparison of the results obtained by measuring in the Gigahertz Transverse Electromagnetic cell and semi-anechoic chamber.