1. A wireless communications device comprising: at least one antenna for receiving a signal burst including a training sequence; a derotator coupled downstream from said at least one antenna; an adaptive space-time filter having settable filter coefficients coupled downstream from said derotator; a channel impulse response estimator for estimating a channel impulse response based upon the training sequence; a signal blocker operatively connected between said channel impulse response estimator and said adaptive space-time filter so that the filter coefficients thereof are set based upon the training sequence; and an equalizer coupled downstream from said adaptive space time filter.