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Latest DX Bulletin
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CommCat Activity |
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As of May 2021 CommCat, CommCat Mobile and QSXer are no longer supported. |
American Radio Relay League | Ham Radio Association and Resources
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
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09/18/2026 01:23 PM
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The ARRL Solar Update
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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) effects are anticipated to persist through September
18, with additional enhancements likely today due to flan...
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09/17/2026 06:56 PM
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Get Ready for Jamboree on the Air
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09/16/2026 04:29 PM
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Contest University Celebrates 100 Years of Yagis
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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 https://w3lif.org/yagi. There is no pre-registration. Click on the link before 1600 Zulu on Saturday to watch. Q...
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09/14/2026 02:09 PM
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The ARRL Solar Update
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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 leading and trailing poles while
undergoing consolidation in its intermediate area. New flux
emergence in the...
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