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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
DXCC Program, W100AW & W1AW QSLs via Bureau, Centennial QSO Party, Operating Specialties, International Grid Chase 2018, Hiram Percy Maxim 150th Birthday Celebration, Cycle 25, Transatlantic, Special Event Stations, Operating Resources, Volunteers On the Air, QSL Service, NPOTA, Contests, Awards, Logbook of The World, Amateur Code, W1AW, Amateur Radio Direction Finding
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Regulatory & Advocacy
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Public Service
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Technology
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Get Involved
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About ARRL
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ARRL
The National Association for Amateur Radio®
225 Main Street
Newington, CT, 06111-1400 USA
Tel: 1-860-594-0200 | Fax: 1-860-594-0259
Toll-free: 1-888-277-5289
hq@arrl.org