It's an interesting article.. Last evening,
about 7 pm local I worked Germany on 160 cw--he
was just above the noise. The night before I
heard Corsica on 160 about the same time. Very
strange propagation.. At least in my experience.
I guess it could just be that I've really
improved my receive antennas, though my transmit
antenna was never meant to work 160... This all left me scratching my head.
Ken
Lummi Island, WA
Joseph Miller <mailto:kj8o.ham@xxxxxxxxx>
Saturday, November 24, 2018 5:06 PM
Well, yeah, that was new term for me as well. I did a web search and found
an interesting article by Bob Brown NM7M PhD UC Berkeley (
http://www.astrosurf.com/luxorion/qsl-hf-tutorial-nm7m5.htm ) and I found a
short explanation about halfway down the page. Maybe I can read the entire
article.
Last winter, while still living in S.E. Michigan, I may have experienced
this phenomenon when in just one evening session, I logged 7 NDBs from
Nunavut (6 of which I had never heard before).
Here's hoping this will shed some light on things.
Vy 73 de Joe KJ8O
Volodya S <mailto:canswl@xxxxxxxxx>
Saturday, November 24, 2018 4:49 PM
A great article, Mark. Thanks for sharing with us. There was a new term
that I had never heard of before, and perhaps someone smarter than me can
explain it further: Gyrofrequency. The map didn't have much information
for North America compared to other places in the world, and was quite
high, into the X-band here. I'll have to re-read it to see whether I grasp
that concept. Ducting, which we were all familiar with in MW DXing is
prominent in the article I'm not quite finished all of it, yet....Walt
On Sat, Nov 24, 2018 at 7:01 PM Mark Connelly via IRCA <
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