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
    on March 24, 2023 at 16:05

    Sunspot numbers were lower again this week, with the averagedeclining from 143.6 two weeks ago to 118.7 last week and now 68this week. Average daily solar flux sank 8 points from 153.6 lastweek to 145.6.Six new sunspot groups emerged over the week, one on March 17,another March 18, three more on March 19, one more on March 21 andanother on March 22.Predicted solar flux is 150, 145 and 145 on Ma…

  • CT Governor Proclaims April 16 – 22 Amateur Radio Recognition Week
    on March 22, 2023 at 21:54
  • Amateur Radio Included in FEMA Guide for National Emergency Preparedness
    on March 22, 2023 at 21:33

    The Federal Emergency Management Agency (FEMA) has released a final version (March 2023) of the National Incident Management System (NIMS) Information and Communications Technology (ICT) Functional Guidance. The guidance, which provides a framework for communications resources within incident management, officially includes support from amateur radio operators. The expanded Communications Unit …

  • Tornado Season and Amateur Radio
    on March 17, 2023 at 15:56

    Tornado season is fast approaching, and amateur radio operators will again play a key role in helping the National Weather Service (NWS) issue accurate and timely warnings. In fact, March through May is considered the most active period for tornadoes to develop.The NWS reports there have already been 255 preliminary filtered reported tornadoes and 213 confirmed tornadoes in the United States in…

  • The K7RA Solar Update
    on March 17, 2023 at 15:08

    Six new sunspot groups emerged over the past week, two on March 9,another on March 10, one more on March 12, and another two on March14.Sunspot numbers and solar flux declined this week.Average daily sunspot numbers softened from 143.6 to 118.7, andaverage daily solar flux from 181.6 to 153.6.Predicted solar flux is 135, 140, 138, and 135 on March 17-20, then132, 132 and 130 on March 21-23, 155…

  • Dayton Amateur Radio Leader Ron Cramer, KD8ENJ, Silent Key
    on March 16, 2023 at 19:48

    Ron Cramer, KD8ENJ, of Dayton, Ohio, passed away on Saturday, March 11, 2023. He was Vice President of the Dayton Amateur Radio Association (DARA) and previously served as its President.Cramer was General Chairman of Dayton Hamvention®, the world’s largest annual gathering of radio amateurs, from 2017 to 2018. In 2017, he was among the Hamvention leadership and team who helped successfully relo…

  • ARRL Headquarters will be Closed on Tuesday, March 14
    on March 13, 2023 at 16:47

    Due to anticipated severe winter weather, ARRL Headquarters will be closed on Tuesday, March 14, 2023, for the safety of our staff. The Headquarters lobby & store, and W1AW will be closed to visitors on Tuesday. We anticipate reopening on Wednesday, March 15, at 8 AM Eastern.ARRL reminds members and prospective members to access information and services online at

  • 2023 Ulrich L. Rohde Award Call for Papers
    on March 10, 2023 at 18:41

    The Software Defined Radio Academy (SDRA) has issued a call for papers for the 2023 Ulrich L. Rohde Award. This award, named after Dr. Ulrich L. Rohde, N1UL, was created in 2022 and is presented to those who have completed innovative research in the field of software-defined radio (SDR). It’s a paper award that requires a written submission by applicants. There are first – second – and third -p…

  • ARRL International DX Contest a Success
    on March 10, 2023 at 18:27

    Last weekend (March 4 – 5, 2023) was the phone segment of the ARRL International DX Contest.Although the deadline to submit logs is 2359Z on March 12, preliminary numbers already show an increase in submissions compared to the same period last year. Conditions were favorable for much of the world, and many operators took to social media to talk about their wins.Italian ham Chris Diemoz, IX1CKN,…

  • The K7RA Solar Update
    on March 10, 2023 at 16:11

    So far this month, two new sunspot groups appeared on March 1,another one on March 2, three more on March 3, one more on March 5,two more on March 6, and another on March 7, then two more on March9.Average daily sunspot numbers rose from 126.3 to 143.6.Average daily solar flux changed from 158.2 to 181.6Average daily planetary A index declined from 27.7 to 14.6, andaverage middle latitude numbe…

  • Schools Set to Talk with Astronauts via Amateur Radio
    on March 7, 2023 at 14:54

    Amateur Radio on the International Space Station (ARISS) has announced that several schools are planning to communicate with orbiting astronauts in the coming weeks.Lana’i High & Elementary School in Lana’i City, Hawaii, will attempt the contact between March 20 and 24, 2023. Students attending the high school already study amateur radio and the research being done on the ISS, among other scien…

  • 2023 Hamvention Awards Announced
    on March 3, 2023 at 19:11

    The 2023 Hamvention Awards committee, chaired by Michael Kalter, W8CI, has announced the 2023 Hamvention award winners. The Special Achievement Award recipient is Dr. Jason McDonald, MD, N2TPA. He is an active, well-known Amateur Extra-class operator who earned his license in 2003. Dr. McDonald began as a radio frequency engineer before changing careers to become a trauma surgeon. Dr. McDonald’…

  • The K7RA Solar Update
    on March 3, 2023 at 18:52

    This was a busy week for geomagnetic storms. A solar wind streamfrom an equatorial hole and a CME blew geomagnetic numbers seeminglyoff the scale, with the planetary A index on Monday hitting 94.Aurora was visible as far south as 40 degrees latitude. Imagine aline running from Reno, Nevada through Provo, Utah then Denver, thenthe Kansas-Nebraska state line, Quincy, Illinois, Dayton, Ohio andPhi…

  • ARRL Headquarters will be Closed on Tuesday, February 28
    on February 27, 2023 at 19:33

    Due to anticipated severe winter weather, ARRL Headquarters will be closed on Tuesday, February 28 for the safety of our staff. We expect things will be back to normal on Wednesday, March 1.

  • W8LT – A History of Amateur Radio at Ohio State University
    on February 24, 2023 at 20:55

    W8LT is the call sign for the Amateur Radio and RF Club at The Ohio State University (OSU).The university club has a long history, and archive records indicate that 1926 was the year it officially became a club, likely making it the oldest one on campus. W8LT is just 3 years shy of celebrating its 100th anniversary.In the early 1920s, the call sign started out as 8LT, until the Radio Act of 192…