A receiver with multiple antennas, such as an 802.11b receiver may generate a magnitude signal for each antenna and add the results to determine a peak signal point in a received frame to provide a bit synchronization signal to a rake receiver component. The receiver may include one or more threshold switches that only pass individual or combined magnitude signals when the magnitude signals are above a certain level. The received frame may be dividing into segments using a switching circuit and registers. A comparator may then evaluate the registers to determine the segment with the highest magnitude signal. In one embodiment, values for adjacent segments may be added to a current segment when determining the segment with the highest magnitude signal.