Electrical equipment stray radio field strength measuring method - measuring field strengths at critical frequencies previously determined by power measurements

摘要

The field strength measuring method involves measuring stray radio field strengths at defined critical frequencies over a wide total frequency range. Variations in the azimuth of the device under investigation as well as the polarisation and height of the measurement antenna of the field strength measurement device are accounted for. The critical frequencies are determined by a previous measurement of stray radio power over the frequency range. A limit value LP = LF - RF is used for the power measurement, where LF is the limit value specified by standards and RF is the measured frequency-dependent level difference between the stray radio power and amplitude levels. ADVANTAGE - Enables accuracy of stray radio field amplitude measurements to be achieved in minimal measurement times.