To: | topband@contesting.com |
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Subject: | Topband: VK6VZ was loud this morning! |
From: | Bill Tippett <btippett@alum.mit.edu> |
Date: | Tue, 14 Sep 2004 16:25:40 -0400 |
List-post: | <mailto:topband@contesting.com> |
KB5NJD wrote: >He also started out louder to the NW. Did anyone else notice this? In disturbed conditions like we had today, it is not unusual for signals to be skewed AWAY from the magnetic pole closest to the normal great circle bearing. For DX from the Southern Hemisphere (i.e. ZL or VK), this means their signals are often skewed North. For DX from the Northern Hemisphere (i.e. EU or JA), this means their signals are often skewed South. During one severe aurora (Kp index = 8), I once worked an SM skewed nearly 90 degrees from his great circle bearing! Ford, regarding living underneath an auroral zone, you might want to consider a complementary hobby like aurora photography. When you have aurora, turn your radio off and go outside like this guy from North Dakota: http://www.prairiejournal.com/northern_lights/ Visual aurora is quite rare at my 35N latitude, but we do occasionally have them: http://users.vnet.net/btippett/6_nov_aurora.htm (6 Nov 2001) I have more pictures from another last Fall but have not yet uploaded those yet. 73, Bill W4ZV P.S. Aurora does not necessarily destroy propagation everywhere. I set the current CQ WW SSB record on 10 meters during a weekend that had a brilliant auroral display. The Ap index was 38 on the 2nd day of the contest fter the following Saturday night aurora: http://www.spaceweather.com/aurora/gallery_28oct01.html _______________________________________________ Topband mailing list Topband@contesting.com http://lists.contesting.com/mailman/listinfo/topband |
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