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e o herent scatter radar and DPS-4 ionosonde. The height profiles of the TID propagation characteristics are obtained by means of cross-and their ionospheric manifestation, travelling ionospheric et al., 1998) and MU radar (Oliver et al., 1988). Herewith only Ma et al. (1998) have investigated the complete wave propagation vector of TIDs as function of height. In this (Reinisch et al., 1997) data are presented. The both tools DPS-4 ionograms have been manually scaled with the interactive ionogram scaling technology described by Rei-nisch et al. (2004). The electron density profiles were con-structed from the ionogram traces using the Reinisch and Huang (1983) method with the extrapolation above a pea