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Recent content by ARRL

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    The ARRL Solar Update

    Solar flare activity is expected to remain at very low levels, with a chance for isolated C-class flares through September 19, according to NOAA's Space Weather Prediction Center (SWPC). Solar wind speed was steady near 530 km/s, and negative polarity CH HSS (coronal hole high-speed stream)...
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    Get Ready for Jamboree on the Air

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    Contest University Celebrates 100 Years of Yagis

    The Yagi-Uda beam antenna was invented 100 years ago, in 1926, and Contest University (CTU) is celebrating its centennial with a live Zoom webinar this Saturday, September 19, 2026, at 1600 UTC (noon Eastern). The free webinar, titled “The Yagi Turns 100,” will be available online at...
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    The ARRL Solar Update

    Solar flare activity was at low levels in the past week with isolated C-class flare activity, according to NOAA’s Space Weather Prediction Center. The largest flare of the period was a C3.4 on September 8 from otherwise stable Region 4528. Region 4530 developed asymmetric penumbra on both its...
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    Special HAARP Transmission for 9/11

    To commemorate the 25th anniversary of the September 11, 2001 attacks on the United States, the High-frequency Active Auroral Research Program (HAARP) at the University of Alaska Fairbanks will be making a special transmission on 9.11 MHz at 0030-0035 UTC on September 12, 2026 (8:30-8:35 PM...
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    Answering the Call: A 9/11 Remembrance from ARRL

    Ed. Note: Details in this article were culled from the November 2001 QST article, “9/11/01: ‘This is Not a Test’ ” by Rick Lindquist, N1RL, and Diane Ortiz, K2DO. The original article is available here (PDF). Twenty-five years ago, on September 11, 2001, the United States came under attack from...
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    Video: Educator Shows How Amateur Radio Is Inspiring Students

    Educator Everton Henriques, KD2ZZT, shared his experience using amateur radio to inspire students and bring engineering and technology to life in the classroom during his keynote at the 2026 ARRL New England Division Convention, hosted by Northeast HamXposition in Massachusetts on August 15. A...
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    Former ARRL COO Harold R. Kramer, WJ1B, Silent Key

    Former ARRL Chief Operating Officer (COO) Harold Robert Kramer, WJ1B, of Cheshire, Connecticut, passed away on Monday, August 31, 2026, at age 78. Kramer served as COO and QST Publisher from 2005 to 2016, following a career in broadcasting. He was an ARRL Life Member and donor, supporting the...
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    Candidates Named for ARRL Director and Vice Director Elections

    ARRL The National Association for Amateur Radio® has announced that the candidates for the 2026 ARRL Division elections are now official. ARRL members will choose between two candidates for Director in the Delta, Great Lakes, and Midwest Divisions, and two candidates for Vice Director in the...
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    Radio, Learning, and Community at the 2026 ARRL National Convention and Huntsville Hamfest

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    The ARRL EME Contest

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    The ARRL Solar Update

    Solar activity reached moderate levels this week. Region 4513 was responsible for an M2.2/1B flare that reached its peak on August 26. This event was accompanied by a 10.7-centimeter radio burst that reached 140 solar flux units (SFU) and a type II radio sweep with an estimated shock speed of...
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    Entrepreneur and Amateur Radio Operator Invests in the Next Generation of Problem Solvers

    ARRL The National Association for Amateur Radio® announced today a historic and transformational $1 million gift from Dr. James M. Galm, W8WTS. An entrepreneur and amateur radio operator who spent his career solving complex energy and engineering challenges, Galm is now investing in the next...
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    Kopernik Observatory Seeks Amateur Radio Operators to Track August 19 Balloon Flight

    Amateur radio operators in western New York and other northeastern states have an opportunity to help track an educational balloon. Drew Deskur, KA1M, Director of the Kopernik Observatory, a public observatory and informal STEM education center in Vestal, New York, said the balloon was expected...
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    The ARRL Solar Update

    Weekly Highlights and Forecast, August 17, 2026, by NOAA Space Weather Prediction Center: Solar activity ranged from very low to low levels throughout the period. No R1 (Minor) or greater events were observed. The largest flare was a C8.2/Sn at 16/1928 UTC from Region 4506. An associated CME...
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