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05/11/2012 | No ARRL Audio News on May 17, Will Return May 24
Due to staff travel to the Dayton Hamvention, there will be no ARRL Audio News on Thursday, May 17. The ARRL Audio News will return on May 24. The distribution of The ARRL Letter will not change, and will be sent out on its regular schedule.
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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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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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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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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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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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