Abstract
This research has been performed within the project “prediction, measurement, and analysis of composite electromagnetic field of artificial radiation sources,” funded by the Ministry of Science and Technology of the Republic of Srpska, Bosnia and Herzegovina. The ultimate goal of the project is the installation of a monitoring network for continuous measurement and recording of nonionizing electromagnetic (EM) radiation levels in the wider area of Banja Luka city centre covering about 10 km2. For this reason it was necessary to make an optimal choice from a dozen of measurement points with the maximum value levels of total EM field. It was a difficult task, because in this case, with the resolution of 5m × 5m, approximately 400,000 points should be examined. Therefore, the pedestrian zones, areas, and routes with significantly smaller surfaces but with the largest flow of people have been examined, so the time required for their mapping with values of total EM field has been reduced to a more realistic framework. In this paper, in the volume allowed by the defined criteria, a fast and reliable experimental method has been described, which has been examined at one of the studied areas in the named project, with surface of 0.008 km2.
Highlights
Public systems of mobile telephony are nowadays commonplace communication technology around the world
The full image on the use of the observed frequency ranges can be acquired. This is due to the fact that the recorded values can be directly compared to the public exposure limits, which are set by the relevant organizations, such as ICNIRP [1], and local governmental authorities [2]
The protection against acute health effects is defined through exposure limits that are given as the International Journal of Antennas and Propagation values of electric, magnetic, and electromagnetic field which shall never be exceeded in any exposure condition [2]
Summary
Public systems of mobile telephony are nowadays commonplace communication technology around the world. As an example, during a base station planning phase, it is necessary to take into account the fact that the field level in proximity of the structure should not exceed the quality targets, no matter if the station is a single structure or coexisting with other similar installations. In such case, a reduction of emitted power by the station itself or by the surrounding emitting structures should be imposed. The same quality targets may be imposed by the local authorities in densely crowded areas (like airports and railway stations, etc.) even in the case of a reduced presence time
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