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The adaptive antenna arrays are being regarded by many as the key solution to increasing the spectral efficiency and improving the system performance in mobile communications systems. These arrays can track the signal of a particular mobile telephone while suppressing later. interfering signals, by exploiting the Spatial Division Multiple Access (SDMA). Although the implementation of adaptive antennas Is mainly investigated on base stations, It is interesting to evaluate their performance at the mobile level. The purpose of this paper is to analyze the results of propagation measurements carried out at 1.9 GHz. In a CDMA system with Triangle PIFA Antenna Array, not only In the base station, but also in the reception. Different wireless environments such as suburban, indoor and woody were exploited, with line-of-sight (LOS) and non-line-of-sight(NLOS) scenarios. The analysis, results were based an attenuation prediction and comparisons with signal received by a traditional monopole.