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12/23/2011 | The K7RA Solar Update
The average daily sunspot numbers this week were about the same as last week, while the average daily solar flux declined a little more than eight points to 128.9. Geomagnetic indicators were quiet. The average daily sunspot numbers of 95.3 for the week i
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11/28/2011 | The K7RA Solar Update
Recently, I mentioned recently that some of the sunspot numbers released by NOAA didn’t seem right. I just got word from Mike Husler at NOAA that data posted recently -- like that record-breaking day when the sunspot number hit 220 -- was wrong. The corre
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10/16/2011 | Amateur Radio Quiz: Coming Soon to a Band Near You!On the last full weekend of every October (that would be October 29-30 for 2011), thousands of hams go pileup to pileup, trying to fill their logs with exotic treats from every corner of the globe! Instead of yelling, “Trick or Treat!” they must instead g
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09/23/2011 | The K7RA Solar Update
Compared to the uneventful past few years, sunspot activity was truly remarkable this week. The daily sunspot number for September 16 was 173. We haven't see numbers like this in more than six years, when the sunspot number was 181, way back on July 5, 20
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04/29/2011 | The K7RA Solar Update
Geomagnetic conditions are quiet this week, but they may become slightly unsettled over this weekend. The average daily sunspot numbers were down more than 18 points to 74.9, while the average daily solar flux was off less than 4 points to 113.4. Sunspot
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01/07/2011 | The K7RA Solar Update
The average daily sunspot numbers were up nearly 24 points this week to 50, while the average daily solar flux rose more than 9 points to 89.5. The lagging three month average of daily sunspot numbers was down 3.5 points from last month’s average of the p
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01/03/2011 | ARRL in Action: What Have We Been Up to Lately?This feature -- including convenient Web links to useful information -- is a concise monthly update of some of the things ARRL is doing on behalf of its members. This installment covers the month of December.
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12/14/2010 | New Edition of ON4UN’s Low-Band DXing Now Shipping!
The fifth edition of ON4UN’s Low-Band DXing: Antennas, Equipment and Techniques for DXcitement on 160, 80 and 40 Meters by John Devoldere, ON4UN, features new and updated material. This is a book -- with CD-ROM included -- that every fan of 40 meters thro
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