2004 - Calculation of the Measurement uncertainty for the field Measurement system field nose
Kriz Alexander; Müllner Wolfgang; Garn Heinrich;
EMC'04 Sendai, Japan; June 2004
A rigorous analysis of uncertainties involved with frequency-selective field-strength measurements of the radio frequency emission from mobile communications base stations using the innovative Field Nose system is presented. The analysis is based on high-precision measurements. The contributions from antenna patterns, antenna factor calibration, test receiver calibration, temperature coefficients, standing waves and cable losses are considered. An expanded uncertainty (k=2; 95%) of 2.5 dB (2.5 GHz) is found at the worst case frequency.