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 deadline is April 30 for US schools, museums, science centers, and community youth organizations (working individually or together) to submit proposals to host an Amateur Radio on the International Space Station (ARISS) contact with an orbiting crew member on the International Space Station (ISS). Contacts would be scheduled between January 1 and June 30, 2019.
Each year, ARISS provides tens...
The results of the 2017 ARRL November Sweepstakes CW are now posted on the ARRL website. Go to the Contest Results Articles page, and scroll down. Click on "2017 Contest Results" and then to “November Sweepstakes (CW).” The full results database is available.
Increase your station’s receive performance with new book Receiving Antennas for the Radio Amateur by ARRL author Eric P. Nichols, KL7AJ.
Although the fundamental characteristics of antennas apply to both transmission and reception, the requirements and priorities of receiving antennas can be vastly different from those of transmitting antennas. Receiving Antennas for the Radio Amateur focuses ...
No sunspots were observed between March 2 and March 15. One sunspot made a brief appearance on March 2, after a blank sun on March 1. Average daily sunspot number dropped from 1.6 to zero this week, and average daily solar flux rose fractionally from 67.6 to 67.7. We’ll be watching the latest sunspot appearance to see if it is as fleeting as the March 2 sunspot.
Geomagnetic indicators rose sligh...
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