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Feature
11/20/2010 | Amateur Radio Quiz: Getting One’s BearingsBy H. Ward Silver, N0AX
n0ax@arrl.net 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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10/15/2010 | The K7RA Solar Update
Solar activity dropped again this week, although it is now gradually strengthening. The average daily sunspot numbers declined nearly 16 points to 11.7, and average daily solar flux dropped more than 5 points to 75.8. Over the next two weeks, the solar fl
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06/18/2010 | The K7RA Solar Update
The average daily sunspot numbers were up 2.5 points from last week, despite the fact that there were no sunspots at all this week on June 15-16. A new sunspot group 1082 emerged yesterday, June 17, and yielded a daily sunspot number of 14. A nice thing a
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04/24/2009 | The K7RA Solar Update
Teased again, on Wednesday, April 22 we saw sunspot 1015 fade away, just as it was about to slip over our Sun's western limb. It emerged only briefly, late on April 21, and by Thursday it had disappeared. Sunspot numbers for April 16 through 22 were 0, 0,
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12/05/2008 | The K7RA Solar Update
This was another quiet week; the geomagnetic indicators hovered around zero and there were no sunspots. Look at the A values for mid-latitude, high latitude and global here. There was another unusually quiet period this week on Sunday, Monday and Tuesday
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10/31/2008 | The K7RA Solar Update
Solar Cycle 24 is slowly building momentum. We saw sunspots for eight days in a row -- October 10-17 -- then 12 days of no spots. Another sunspot -- number 1007 -- appeared on October 30 from Solar Cycle 24. It is a high latitude sunspot and may provide s
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10/03/2008 | The K7RA Solar Update
The sunspot appearance reported last week seems to follow the pattern emerging for most of 2008. A spot will appear for one or two days and then suddenly it is gone. Last week's report mentioned the solar wind being at an all time low. This week, NASA ann
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03/28/2008 | The K7RA Solar Update
It is exciting to see heightened solar activity one week into spring. Currently, three sunspots are visible: 987, 988 and 989. The consensus says that all seem to be old Solar Cycle 23 spots. But with the three sunspot groups so close to the Sun's equator
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