Effects of Antenna Elevation and Inclination on VLF/LF Signal Structure.

Height Profiles of Transpolor VLF/LF Signals.

“…-2- Previous research [Lewis and Harrison, 1975;Kossey et al, 1981;Pappert, 1970;Field, 1975;Field et al, 1976;Field, 1981aField, , 1981b suggests that, for air- …”

“…We solve them numerically, using the method of Field et al [1976], accounting for the vertical inhomogeneity of the ionosphere and curvature of the earth. To define the notation and illustrate the key dependences, we recapitulate the equations that govern the electric field when geomagnetic anisotropy can be neglected.…”