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Frequencies higher than 3 GHz are today of extreme interest for the agile human exposimetry. Current approach proposes and demonstrates the capability of a statistic method to report 4G/4G+ wireless applications usage impact on the human factor by providing results regarding: a) energy density accumulation rate in air near the emitting device (instantaneous and average); b) observation of peculiarities of time-distribution of emitted field strengths during certain wireless application/device/network/moment in time of usage.

The measurement of realistic exposure levels of quasi - stochastic signals from the IEEE 802.11ac communication standard was achieved by applying the complementary cumulative distribution function mode of a real - time spectrum analyzer connected to a laptop. Statistics were used to highlight the differences between the data transfer directions.

The paper investigates the accuracy of assessing exposure to radiation emitted by sources specific to the IEEE 802.11n communication standard by two methods. The first one is based on weighing of the maximum power channel measured in the frequency domain and the second one uses the complementary cumulative distribution function (CCDF) acquisition mode of a real-time spectrum analyzer. It has been demonstrated that the CCDF method is much proper to be applied in the case of the quasi-stochastic signals such as WLAN's.

The paper aims to analyze the electromagnetic field components in the near field of a high frequency (HF) emission antenna. The typical case of a dipole antenna emitting Near Vertical Incident Skywave (NVIS) HF signals at two emitting frequencies (3.6 MHz and 7.1 MHz) and at 100 W input power is being discussed. The measurements have highlighted the places around the antenna where the field levels are high, from the perspective of safe exposure to electromagnetic radiation. Thus, it was found that on a line situated just beneath and parallel to the emitting antenna, the electric field strength may exceed the safety limit recommended for the population by ICNIRP guidelines. The magnetic field component however was lower than the limit in all considered cases.