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09/16/2011 | The K7RA Solar Update

Although the average daily sunspot numbers are lower -- down nearly 13 points to 91.7 -- the average daily solar flux is higher by 6.7 points, rising to 122.2. Yes, solar activity is rising rapidly. You could see it coming earlier this week by glancing at
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09/07/2011 | Stanford University Researchers Announce Sunspot Breakthrough

Imagine forecasting a hurricane in Miami weeks before the storm was even a swirl of clouds off the coast of Africa -- or predicting a tornado in Kansas from the flutter of a butterfly’s wing in Texas. These are the kind of forecasts meteorologists can onl
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08/09/2011 | Solar Explosions Could Impact Earth

The National Oceanic and Atmospheric Administration (NOAA) is keeping an eye on a set of solar storms and explosions that could disrupt satellite, telecommunications and electric equipment here on Earth in the next few days. While activity had reportedly
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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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05/28/2010 | Surfin’: Online HF Propagation Application

This week, Surfin’ kicks the tires on a cool new online HF propagation tool.
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05/14/2010 | The K7RA Solar Update

This lack of sunspots is bothersome. Thursday -- May 13 -- is the fifth day in a row with no spots, and there is no sign of any change. The solar flux has been declining and is now below 70. The predicted solar flux for May 14-19 is 70, then 74 on May 20,
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01/08/2010 | The K7RA Solar Update

Recent sunspot activity is increasing, and the numbers bear this out. The average daily sunspot number for 2009 was 5 and the average for 2008 was 4.7.
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12/21/2009 | The Amateur Amateur: Any-Bounce

"Other than the ionosphere, have you ever deliberately bounced your signal off of something in order to improve your propagation?" That was the question asked during one of our recent ARES nets.
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