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.
  1. WRTC 2018 Plans Call for Greater Participation by Young Contesters

    The 8th World Radiosport Team Championship, WRTC 2018 in Germany next July, will offer seats on three teams for contesters who are 25 or younger at the time of the event. Prospective participants need only to apply. The international event July 12-16, 2018, will feature 42 competing teams. This will mark Germany’s first time hosting a WRTC, which takes place in conjunction with the IARU HF Cham...

  2. Geomagnetic Storm Watch Remains in Effect

    NOAA’s Space Weather Prediction Center (SWPC) says a minor (G1) geomagnetic storm watch remains in effect for April 24-26, due to the continued influence of a large, recurrent, negative-polarity coronal hole high-speed stream (CH HSS). A coronal hole is an area of the Sun where the magnetic field folds back, and solar wind escapes. This follows on the heels of an unexpected coronal mass ejectio...

  3. The K7RA Solar Update

    This just in from the Australian Space Forecast Centre at 2349 UTC on April 20, 2017:

    Recurrent coronal hole is expected to be geoeffective.

    INCREASED GEOMAGNETIC ACTIVITY EXPECTED
    DUE TO CORONAL HOLE HIGH SPEED WIND STREAM
    FOR 23 APRIL 2017

    GEOMAGNETIC ACTIVITY FORECAST
    23 Apr:  Active to Minor Storm


    Spaceweather.com reported old sunspot AR2644 returned after a 2-week trip around the Sun, and explode...

  4. ARRL Hamvention Forum Topics Will Encompass Makers, Youth, HamSCI

    When Hamvention® opens on May 19 for the first time in Xenia, Ohio, the focus of ARRL activities will be the ARRL EXPO in Building 2 of the Greene County Fairgrounds and Expo Center. ARRL will sponsor a slate of forums on all 3 days of Hamvention.

    To highlight the new location, some fresh ARRL forum topics will accompany the old standards. Space is limited at some forum venues.

    • ARRL has reached o...
  5. Puerto Rico Radio Amateurs Take Part in 2017 Caribbean Tsunami Exercise

    As they have done in past years, radio amateurs in Puerto Rico took part in the Caribe Wave tsunami exercise on March 21. Tsunami Preparedness Week was March 19-25 for Puerto Rico and the Virgin Islands. Caribe Wave is the annual tsunami exercise of the UNESCO Tsunami and Other Coastal Hazards Warning System for the Caribbean and Adjacent Regions (CARIBE-EWS). Its major objective is for countri...

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