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10/26/2012 | The K7RA Solar Update

Good conditions should prevail for the CQ World Wide SSB DX Contest this weekend. A chance for solar flares has greatly diminished in the past few days, and the latest forecast has the planetary A index at a steady and quiet 5 for this weekend and beyond,
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03/09/2012 | The K7RA Solar Update

This has been quite a week for dramatic solar activity. The average daily sunspot number was up nearly 26 points to 69.4, while the average daily solar flux rose nearly 17 points to 121.9 for the period March 1-7. Sunspot numbers for March 1-7 were 24, 24
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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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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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03/11/2011 | The K7RA Solar Update

Solar Cycle 24 continued its upward trend this week. The average daily sunspot number was more than double the value of the week before, rising from 50.9 to 114, while the average daily solar flux rose 44 percent, from 96.8 to 139.4. All this week through
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11/26/2010 | The K7RA Solar Update

The average daily solar flux declined this week more than 36 points compared to last week, to 24.6. Our reporting week -- which ran until November 24 -- showed the daily sunspot number declining from 40 to 11, but on November 25 the sunspot number rose to
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Feature
11/20/2010 | Amateur Radio Quiz: Getting One’s Bearings

By H. Ward Silver, N0AX
[email protected] Hams need to point their antennas accurately, but how can you do that if you don’t know the words used to describe direction? Ready, fire, aim! 1) For two different stations to have short-path bearings that are exac...
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11/25/2009 | The K7RA Solar Update

This edition of the Solar Update will be brief. Since ARRL Headquarters is closed on Thanksgiving Day and the day after, I hope to have another bulletin out Monday morning to catch up with the sunspot, solar flux and geomagnetic data information.
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