The importance of tilted layers in the tropospheric ducting of radio waves over the Timor sea

A solid state microwave refractometer was mounted in a Royal Australian Air Force Dakota aircraft in order to measure vertical profiles of the atmospheric radio-refractive index over the Timor Sea at times of anomalous radio wave propagation. Computer raytracing techniques, applied to model atmospheres based on these measurements, have indicated the importance of tilted layers in the tropospheric ducting of short-wave radio energy.