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  • sunspot082710

    08/27/2010 | The K7RA Solar Update

    This week, we saw three days -- August 21-23 -- with no sunspots, and the average daily sunspot numbers for the week -- August 19-25 -- declined over 28 points to 8, compared to the previous week. The average daily solar flux was down more than 8 points t
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  • Sunspot072910

    07/30/2010 | The K7RA Solar Update

    Sunspot activity increased again this week, but on Tuesday and Wednesday -- July 27-28 -- a stiff solar wind increased Earth’s geomagnetic activity, which is a negative for HF propagation. Sunspot numbers for July 22-28 were 39, 45, 41, 39, 39, 15 and 31,
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  • sunspot021610

    02/12/2010 | The K7RA Solar Update

    Increasing sunspot activity continues. A glance at the image from NASA's STEREO mission shows a string of active regions in the Sun's northern hemisphere, both visible and over the horizon on the far side.
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  • sunspot011510

    01/15/2010 | The K7RA Solar Update

    The recent sunspot activity that we've been experiencing remains strong. The weekly averages of daily sunspot numbers that we've been reporting over the past six weeks were 1.9, 21.1, 31.4, 21.9, 14.6 -- and now 26.4.
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  • 10/02/2009 | The K7RA Solar Update

    With the appearance of two sunspots, the past 11 days had some nice HF propagation. Combined with quiet geomagnetic conditions and month after month of quiet Sun, it seems quite a dramatic relief. Sunspot 1026 has faded away, and sunspot 1027 -- which app
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  • 02/26/2009 | ARRL Sweepstakes and RTTY Roundup Set New Records

    The lack of good HF propagation didn't seem to affect participation in the 2008 Sweepstakes or the 2009 RTTY Roundup contests. According to ARRL Contest Manager Sean Kutzko, KX9X, both contests were record-breaking events. "We have received 3298 logs
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  • 12/24/2008 | The January/February NCJ Hits the Streets

    NCJ, The National Contest Journal is what everyone interested in radiosport needs to have in their shack. Filled with the latest news from the contesting world, this is a definite must-have. Whether you are new to contesting or are a sea
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