A method and apparatus for providing a position location based on transmission of substantially parallel, collimated, coherent signal beams from a reference position, the beams being rotated in fixed parallel relation to one another about the reference position. The determination of the distance of the receiving position from the reference position, or the determination of the azimuth of the receiving position from a predetermined reference direction through the reference position, or both, is determined according to incremental angular rotation of the beams independently of the angular velocity of rotation.