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...

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...

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 eastern time Friday evening). The transmission will consist of a Morse code QST, followed by a slow-scan ...