Abstract:

In this paper the measurement method of radio wave propagation delay with the timming signals from RWM(Moscow) and RID(Irkutsk) station to Antarctic Great Wall Station is introduced. Then according to the propagation delay data measured from April 1991 to September 1991 the propagation paths are analyzed. The propagation time blocks along the long and short great circle paths are illustrated. It is recognized that there are non great circle path propagation, and its behaviour are explained. We make an approach to the occurrence condition for non great circle path propagation.