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. Special Event Stations Mark World Amateur Radio Day, April 18
    Today, Saturday, April 18, is World Amateur Radio Day (WARD). The event celebrates the founding of the International Amateur Radio Union (IARU) on April 18, 1925, in Paris, with ARRL Co-Founder Hiram Percy Maxim, 1AW, as its first president.

    From the 25 countries that formed the IARU in 1925, the IARU has grown to include 160 member-societies in three regions.

    Radio amateurs worldwide are taking ...

  2. ARRL Teachers Institute Sessions Still Accepting Applications

    The ARRL Education & Technology Program is still accepting applications for all four sessions of the ARRL Teachers Institute this summer. Apply now! The deadline is May 1.

    ARRL is offering three sessions of its “Introductory Teachers Institute on Wireless Technology” (TI-1) during the summer of 2015. Topics covered in the TI-1 course include basic electronics, radio science, microcontroller prog...

  3. Australian Ham’s “PicoSpace” Balloon Circumnavigates the Globe

    A foil, party-type balloon carrying a ham radio payload has circumnavigated the globe. Launched on April 6 by Australian radio amateur Andy Nguyen, VK3YT, of Kensington, Victoria, Australia, the balloon, designated PS-41, completed its round-the-world journey on April 16 and is still in the air. Along the way, it has been tracked by a network of Amateur Radio operators. Nguyen has been trying s...

  4. ARRL “Ham Aid” HF Gear Arrives in Micronesia in Wake of Tropical Cyclone

    An ARRL “Ham Aid” kit of HF gear has arrived in Federated States of Micronesia (FSM) as part of a relief effort in the wake of Tropical Cyclone Maysak. The Ham Aid equipment accompanied a shipment of radio gear, tools, and supplies that John Bush, KH6DLK/V63JB, took from Hawaii to FSM last week. Tropical Cyclone Maysak ravaged many of the nation’s islands in late March and early April, wreaking...

  5. The K7RA Solar Update

    Solar activity increased this week. Average daily sunspot numbers increased from 50.1 last week (April 2-8) to 65.6 in the recent (April 9-15) period. Average daily solar flux rose from 118.4 to 132.5. Geomagnetic indexes also increased.

    The latest prediction shows solar flux at 150 on April 17, 155 on April 18-20, 160 on April 21-24, 115 on April 25-26, then 120, 125 and 130 on April 27-29, 125...

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