A correlation between the results of the radiated emission measurements in GTEM and OATS

This paper reports on the results of a correlation exercise, comparing radiated emissions measurements obtained at the GTEM cell and the OATS (open area test site). Radiated emission noise from a notebook computer has been tested and statistical analysis of the correlation between GTEM data and OATS data has been performed. The emission test results of the notebook computer show that the mean, the standard deviation and Pearson's correlation coefficient are -0.15, 1.92 and +0.92 for vertical emission mode, respectively. For horizontal emission mode, the values are -0.33, 2.00 and +0.87, respectively. These figures indicate that there is a very strong correlation relationship between the GTEM cell and the OATS. The selected GTEM correlation algorithm that required fifteen orientations of equipment under test has been verified as accurate and validated.