Intercontinental Low Band Qsos During The 2017-08-21 Eclipse

Summary: During the 2017-08-21 solar eclipse, there was potentially a large increase in 7 MHz signal strengths, on the path from Oregon to east Asia, for only about 20 minutes near Oregon totality. WU1ITU/7 in Oregon contacted YC4CHP, JH4ALY, and JA2VRZ during this time period, approximately four hours after local sunrise. It is conceivable (but certainly not confirmed) that these were the only low-band DX QSOs from North America that were substantially assisted by the eclipse. If there indeed was only a 20-minute time period for the most pronounced eclipse effects, then that finding might differ from the 4-hour time period shown on the http://hamsci.org/sites/default/files/publications/2017_Dayton/6%20-%20Dayton%20HamSCI%20W2NAF.pdf web page for the Afraimovich et al. (2002) research on the August 1999 eclipse. See http://wu1itu.club/2017-08-21-eclipse-40m-asia for more details,