## 3 Results and Discussion
### Multi-Location On-Body RF EMF Exposure Evaluation (Virtual Measurements)
\begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**Measurement Points**} & \multicolumn{3}{c}{**KX1 ss Range for 3600 MHz Frequency, Point Probe at Various Distances to Body**} \\ \cline{2-5}  & **5 mm** & **10 mm** & **15 mm** & **20 mm** \\ \hline Head & 0.56–1.33 & 0.95–1.18 & 0.91–1.34 & 0.87–1.49 \\ Head + any 1 location & 0.54–0.73 & 0.65–0.89 & 0.71–1.02 & 0.75–1.09 \\ Head + any 2 locations & 0.44–0.66 & 0.52–0.82 & 0.58–0.94 & 0.63–0.99 \\ Head + any 3 locations & 0.43–0.60 & 0.51–0.74 & 0.58–0.87 & 0.63–0.93 \\ Head + any 4 locations & 0.42–0.56 & 0.52–0.69 & 0.60–0.81 & 0.65–0.87 \\ Head + any 5 locations & 0.44–0.51 & 0.54–0.62 & 0.63–0.73 & 0.68–0.79 \\ Head + 6 locations & 0.46 & 0.56 & 0.66 & 0.72 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Comparison of the dispersion of results for single and multi-point small-sensor measurement locations (point E-field sensor) for 3600 MHz frequency expressed by KX1 ss ratio. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Measurement Points**} & \multicolumn{6}{c}{**KX1 bp Range for Frequency**} \\ \cline{2-7}  & **100 MHz** & **400 MHz** & **700 MHz** & **1000 MHz** & **1800 MHz** & **2600 MHz** & **3600 MHz** \\ \hline Head & 0.56–3.21 & 0.59–1.05 & 0.94–1.47 & 0.93–1.07 & 0.72–1.15 & 0.96–1.23 & 0.89–1.07 \\ \hline Head + any 1 location & 1.23–1.84 & 0.61–0.96 & 0.76–1.13 & 0.70–1.06 & 0.73–1.14 & 0.73–1.18 & 0.69–1.11 \\ \hline Head + any 2 locations & 1.05–1.77 & 0.59–0.86 & 0.67–0.90 & 0.61–0.86 & 0.63–0.93 & 0.64–0.96 & 0.63–0.91 \\ \hline Head + any 3 locations & 1.04–1.58 & 0.60–0.80 & 0.65–0.83 & 0.61–0.80 & 0.63–0.87 & 0.65–0.89 & 0.64–0.87 \\ \hline Head + any 4 locations & 1.04–1.41 & 0.61–0.76 & 0.65–0.79 & 0.61–0.76 & 0.63–0.82 & 0.66–0.84 & 0.66–0.83 \\ \hline Head + any 5 locations & 1.15–1.34 & 0.64–0.73 & 0.65–0.74 & 0.63–0.71 & 0.66–0.75 & 0.68–0.78 & 0.68–0.77 \\ \hline Head + 6 locations & 1.24 & 0.68 & 0.69 & 0.66 & 0.70 & 0.72 & 0.72 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Comparison of the dispersion of results for single and multi-point ball-probe measurement locations (\(\phi\)50 mm E-field sensor) expressed by KX1 bp ratio. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Measurement Points**} & \multicolumn{6}{c}{**KX1 ss Range for 100 MHz Frequency, Point Probe at Various Distances to Body**} \\ \cline{2-5}  & **5 mm** & **10 mm** & **15 mm** & **20 mm** \\ \hline Head & 0.19–5.29 & 0.31–4.74 & 0.38–4.15 & 0.45–3.83 \\ Head + any 1 location & 1.58–2.47 & 1.42–2.24 & 1.36–2.09 & 1.32–2.00 \\ Head + any 2 locations & 1.25–2.33 & 1.16–2.17 & 1.13–2.04 & 1.10–1.96 \\ Head + any 3 locations & 1.16–2.01 & 1.10–1.89 & 1.09–1.79 & 1.08–1.73 \\ Head + any 4 locations & 1.14–1.79 & 1.09–1.70 & 1.08–1.63 & 1.07–1.58 \\ Head + any 5 locations & 1.29–1.59 & 1.25–1.52 & 1.23–1.47 & 1.20–1.43 \\ Head + 6 locations & 1.43 & 1.37 & 1.33 & 1.31 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Comparison of the dispersion of results for single and multi-point small-sensor measurement locations (point E-field sensor) for 100 MHz frequency expressed by KX1 ss ratio. At higher frequencies (with corresponding wavelength approximately 10-35 cm) the ranges of changes in the KX1 bp ratios are smaller. This can be explained by the fact that at the 100 MHz frequency the so called \"antenna effect\", which occurs the most significantly when the body height matches half of the wavelength--e.g., for height of Duke model 1.77 m, it is a 84.7 MHz--is still significant. The obtained data confirms the hypothesis that increasing the number of simultaneous on-body measurement points, and using the averaged results from such measurements, significantly reduces the uncertainty of assessing workers' RF EMF exposure. For example, increasing the measurement points from 2 to 3 reduces dispersion of measurements results (KX1 bp and KX1 ss ratios) by approx. 30-40% (Figures 8 and 9).