Techniques for determining the position of a transmitter using two or more antenna arrays are described. According to some techniques, first and second antenna arrays create respective sets of receive beams, and at least some of the receive beams of each array detect symbols of a preamble symbol sequence. The respective sets of receive beams that detected the symbols are sorted by path length, and a shortest path length from the transmitter to the respective arrays is determined. An intersection point of the shortest paths is used to determine the position of the transmitter.