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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.

  • Solar Eclipse QSO Party Will Facilitate Real Science
  • Ham Hoping to Crowd-Fund Experimental Time at HAARP Facility
  • The 2017-2018 edition (46th ed) of the ARRL Repeater Directory® has sold out.

    The 2017-2018 edition (46th ed) of the ARRL Repeater Directory®, introduced in April, has sold out. Some ARRL publication dealers and online resellers may have remaining copies of the current edition, which was the first edition to use data supplied from “crowdsourcing” technology. Crowdsourcing is a means of using data gathered from public resources. Data for the Repeater Directory was supplie...



  • The K7RA Solar Update

    Average daily sunspot numbers for the recent reporting week (August 3-9) rose 7.1 points to 12.1, and average daily solar flux rose from 71 to 73.2.

    Average daily planetary A index went from 5 to 11.3, and mid latitude A index rose from 6 to 10.9.

    Predicted solar flux for the near term is 74 on August 15-21, 72 on August 22, 68 on August 23-28, 70 on August 29, and 72 on August 30 through Septemb...



  • Amateur Radio Administration Course (ARAC) a Success in Mexico

    For the second year in a row, ARRL, IARU Region 2, and the Federación Mexicana de Radioexperimentadores (FMRE) have presented the Amateur Radio Administration Course (ARAC) in Mexico City. The course was held August 7-9 at Mexico City’s World Trade Center. The ARAC is aimed at the people in charge of administering the Amateur Radio and Amateur Satellite services within the participants’ respect...