Analysis of 3-cm radio height-gain curves taken over rough terrain

This report describes the effect of terrain and meteorological conditions on the height-gain pattern of 3.2-cm radio waves over various short transmission paths. Equivalent reflection coefficients are obtained and potential reflection areas are investigated. A study of the time variations in the height of nulls in the signal strength pattern is made and the relationship between movement of the nulls and the corresponding refractive index distribution is considered.