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Little work has been done on the measurement of the BER characteristics of an adaptive antenna in a multipath-fading channel. The paper presents an empirical study of the BER performance of a mobile communications handset adaptive antenna array in a Rayleigh-fading channel generated using a spatial fading emulator. The spatial fading emulator (Iwai, H. et al., IEEE-APS Conf., 2005), which is based on Clarke's model (Vaughan, R and Andersen, J.B., The IEE, 2003), produces Rayleigh-fading channels for both the desired and interference signals. The effectiveness of an adaptive antenna array composed of 2 half-wavelength dipoles subjected to signals generated by the spatial fading emulator was confirmed by measurements of the BER performance.