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  • sunspot123109

    12/31/2009 | The K7RA Solar Update

    Here we are, on the last day of the year, with finally some very positive indicators for Solar Cycle 24. Each day since December 9 (except for Christmas Day), sunspots have been visible. The average daily sunspot numbers for the week December 24-30 were 1
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  • sunspot121109

    12/11/2009 | The K7RA Solar Update

    Finally! A sunspot appeared on Wednesday, December 9, giving us a daily sunspot number of 13, following 16 days of no sunspots. And on December 10, the sunspot number was 13. The new group is number 1034, and it is a Solar Cycle 24 spot, as all sunspots h
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  • 12/01/2009 | From One End of HF to the Other: The ARRL 160 Meter and 10 Meter Contests

    Both MF and HF offer a lot of breathing room for all interests in Amateur Radio. As the 2009-2010 Contest Season continues, two single-band events in December will highlight the magic of the opposite ends of the shortwave spectrum: the ARRL 160 Meter Cont
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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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  • 11/06/2009 | The K7RA Solar Update

    In addition to the sunspot group 1029 that graced us from October 23-30, a new Solar Cycle 24 spot -- 1030 -- just emerged on Thursday. It is currently in a maximally geo-effective position (in other words, in the center longitudinal meridian as viewed fr
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