Time division circular polarization - A simple technique for increasing propagation experiment productivity

Attenuation and depolarization can be measured simultaneously in the case of two orthogonal circularly polarized waves in a slowly varying linear propagation medium by the time division circular polarization (TDCP) technique outlined, using only one single-frequency CW beacon switched between two linearly polarized horn antenna ports. Restrictions on use of the technique are spelled out. Direct measurements on the circularly polarized waves can also be applied to accuracy checks on the calculations.