It would be good to pay heed to N7DF's e-mail about possible improved propagation when the IMF turns south. Two examples that come to mind are skewed paths (reflection/refraction from the intense ionization at the equatorward edge of the auroral oval) and enhanced paths right before the K index spikes up (possibly due to an improved electron density valley - giving ducting). One quick correction, though - the electrons that precipitate into the high-latitude atmosphere when the K index is elevated are those that were trapped in the Earth's magnetosphere - they don't come directly from the Sun (the electrons in the solar wind are way too low in energy). Carl K9LA _______________________________________________ Topband reflector - [email protected]
