Electromagnetic environment mapping for the assessment of critical wireless services in ISM bands

Wireless technologies for critical societal functions is becoming more common today. Criminals have already recognized this vulnerability and used it in various types of crimes. Unintentional radiated electromagnetic interference can also be a big problem for these types of services. Before deployment of critical societal functions based on wireless technologies, mapping and analysis of the electromagnetic environment area is essential. In this work a cost efficient system for qualified mapping and analysis of the electromagnetic environment is described and demonstrated. The example results herein presents a methodology to identify areas with increase background interference. Furthermore, an example of a system that operates in an unlicensed ISM-band is given and based on the mapping data, its vulnerability to other transmitters is analyzed and qualified.