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03/13/2015 | Solar Flares, Poor Operating Challenge Eritrea DXpedition

An intense burst of noise from what is being called a “monster X-class solar flare” briefly blanked out HF reception around the globe at around 1600 UTC on March 12, and additional disruptions could be on the way.
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05/11/2012 | The K7RA Solar Update

The average daily solar flux for the past week rose slightly, 116.2 to 119, but the average daily sunspot numbers declined more than 14 points (about 13 percent), to 92.6. Sunspot numbers for May 3-9 were 107, 101, 88, 104, 79, 90 and 79, with a mean of 9
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02/03/2012 | The K7RA Solar Update

Here are some yearly averages that we have neglected at the beginning of the year. These are the average daily sunspot numbers for whole calendar years, from 1994-2011: 48.1, 28.7, 13.2, 30.7, 88.7, 136.3, 173, 170.3, 176.7, 109.2, 68.6, 48.9, 26.1, 12.8
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11/04/2011 | The K7RA Solar Update

First, a few updates on Solar Cycle 24. As you might suspect, the average of daily sunspot numbers for October shot way up -- from 55.5 in June, to 67.2 in July, 66 in August, 106.4 in September and 123.6 in October. Our three month moving average of dail
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