Crossed-dipole method of measuring wave tilt

Techniques for measuring the wave tilt for parallel and perpendicular polarization are reviewed and an extensive bibliography is included. An additional measurement technique is proposed which should be useful for the HF, MF, and LF range, and has potential application in the VLF band. Measurement of the phase difference between the signals induced in crossed dipoles lying in the plane of incidence allows determination of the ground constants.