Abstract
In this paper, electromagnetic (EM) pollution (or radiation) measurements in a transmitter region were performed and statistical analysis of values recorded for the EM sources causing pollution was carried out. The actual measurement values and the estimated values by the analysis model obtained through the statistical analysis were compared. EM radiation levels were measured in the districts of Turkish capital Ankara where cellular base stations and TV/Radio stations are densely populated. EM Radiation (EMR) levels were measured for the GSM900, GSM1800, UHF4, VHF4 and VHF5 stations for certain spectrum ranges under far-field conditions by utilizing isotropic field probe and selective spectrum analyzer. The obtained measurement levels were compared with the limit values given by International Commission for Non-Ionizing Radiation Protection (ICNIRP). The results are discussed, regarding both the obtained values that influence the measurements.
Highlights
IntroductionThe use of EM Radiation (EMR) for communication increased significantly in the recent years (radio, television and cellular) and the environmental level of EMR has increased
The use of EM Radiation (EMR) for communication increased significantly in the recent years and the environmental level of EMR has increased
EM Radiation (EMR) levels were measured for the GSM900, GSM1800, UHF4, VHF4 and VHF5 stations for certain spectrum ranges under far-field conditions by utilizing isotropic field probe and selective spectrum analyzer
Summary
The use of EMR for communication increased significantly in the recent years (radio, television and cellular) and the environmental level of EMR has increased. The massive proliferation of mobile communications equipment raised a special concern regarding the safety of population and personnel exposed to radiofrequency (RF) radiation emitted by either the base-station antennas [1]. The potential health effects of EMR from the transmitters for broadcasting of radio/TV and mobile communication are the subject of on-going researches [2,3] and a significant amount of public debate. The measurements were in Dikmen Caldagi Hill transmitter region where many EM pollution sources are located. There are three public mobile communication operators in Turkey: Vodafone (GSM 900 MHz), Turkcell (GSM 900 MHz), AVEA (GSM 1800 MHz or DCS 1800 MHz). From the statistical analysis of the measurement results, EM radiation levels can be modeled through various calculations and formulas retrieved under certain conditions and within acceptable correctness. Estimation or determination of the dependant variable total EM pollution is realized as based on the modeling
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