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  • latest041912

    04/20/2012 | The K7RA Solar Update

    Both the solar flux and sunspot numbers reached a short term low on April 8-11, but they are now rising again. For the past week -- April 12-18 -- the average daily sunspot numbers more than doubled, compared to the previous seven days, rising more than 3
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  • latest010512

    01/06/2012 | The K7RA Solar Update

    We’re continuing to see good conditions, although sunspot activity has declined a bit. The average daily sunspot numbers for December 29-January 4 declined nearly 20 points (when compared to the previous seven days) to 88.1; this is the lowest reported we
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    12/16/2011 | ARRL Headquarters to Close for Christmas, New Year’s Holidays

    ARRL Headquarters will be closed Monday, December 26 and Monday, January 2 in observance of Christmas and New Year’s Day. There will be no W1AW bulletins or code practice transmissions those days. There will be no ARRL Letter or ARRL Audio News on Thursda
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  • latest121511

    12/16/2011 | The K7RA Solar Update

    Solar activity dropped this week, with the average daily sunspot numbers declining more than 39 points to 94.7. It’s been 13 weeks since the average daily sunspot number for the week was that low or lower, when we reported an average of 91.7 in the Septem
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  • latest120811

    12/09/2011 | The K7RA Solar Update

    What happened to that new “grand minima”? Solar Cycle 24 just keeps rolling along -- for the first seven days in December, there were eight new sunspot groups. December 5 had the largest sunspot coverage over the past week, with a daily sunspot number of
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  • latest112311

    11/23/2011 | The K7RA Solar Update

    Not much in the way of solar excitement this week, except there are many sunspots, but the solar activity in terms of flares or coronal mass ejections is low. The overlapping (by one day) average sunspot numbers in this bulletin declined 21 points to 124.
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    11/16/2011 | ARRL Headquarters to Close for Thanksgiving Holidays

    ARRL Headquarters will be closed November 24 and 25 in observance of Thanksgiving. There will be no W1AW bulletins or code practice transmissions those days. The ARRL Letter will be published a day early on Wednesday, November 23, but there will be no ARR
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  • latest102011

    10/21/2011 | The K7RA Solar Update

    Our Sun continues to be very active, with most days revealing more sunspots. We saw one new sunspot group on October 9, another on October 10, two more on October 11 and two more on October 12. But that’s not all: There was another on October 13, two more
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