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12/02/2013 | The K7RA Solar Update
A post-Thanksgiving summary
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11/15/2013 | The K7RA Solar Update
Daily sunspot numbers are rising to levels not seen since the previous solar cycle.
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EXPLORE ARRL
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On The Air
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ARRL
The National Association for Amateur Radio®
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Newington, CT, 06111-1400 USA
Tel: 1-860-594-0200 | Fax: 1-860-594-0259
Toll-free: 1-888-277-5289
hq@arrl.org