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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.

  • The K7RA Solar Update

    Tad Cook, K7RA, Seattle, reports: Last week, we reported a big increase in activity with the daily sunspot number reaching 124, but by the end of that week all sunspots had disappeared. The sun was blank for several days, but sunspots returned on September 19.

    Average daily sunspot numbers this week were 28.7, which was below the 58.3 average reported a week earlier. Average daily solar flux was...



  • Open-Source Amateur Satellite Work Not Subject to Export Administration Regulation

    CEO Michelle Thompson, W5NYV, reports that Open Research Institute (ORI) received an advisory opinion from the US Commerce Department Bureau of Industry and Security (BIS) on September 2. The letter confirmed that public internet posts regarding open-source amateur satellite communications work are not subject to Export Administration Regulation (EAR). ORI was founded in March 2018 by Bruce Per...



  • ARRL, RSGB Announce Joint Events to Celebrate Centenary of Ham Radio Transatlantic Success

    ARRL and the Radio Society of Great Britain will jointly sponsor events to celebrate the achievement of transatlantic communications by radio amateurs 100 years ago.

    In December 1921, ARRL sent Paul F. Godley, 2ZE, as its representative to listen for amateur signals from North America during the Second Transatlantic Tests. Setting up his listening station in Ardrossan, on the west coast of Scotl...



  • Registration Opens for USA Amateur Radio Direction Finding Championships
  • Clear Frequencies Requested for Possible Nicaragua Earthquake Traffic

    IARU Region 2 Emergency Coordinator Carlos Alberto Santamaría González, CO2JC, has requested that radio amateurs in Central America avoid 7098 and 7198 kHz in the wake of an earthquake at 0957 UTC this morning (September 22) in Nicaragua.

    The US Geological Survey (USGS) said the offshore magnitude 6.5 earthquake has also affected Belize, Costa Rica, El Salvador, Guatemala, and Honduras. The ear...