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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.
05/09/2025 07:22 PM
The ARRL Solar Report

The Solar Geophysical Activity Report and Forecast from the
USAF/NOAA indicates that solar activity has been at low levels for
the past 24 hours.

There are currently four numbered sunspot regions on the solar disk.
Solar activity is expected to be low with a chance for M-class
flares on May 10 and 11.

A simultaneous filament eruption produced a narrow Coronal Mass
Ejection (CME) signature that was fir...


05/09/2025 05:38 PM
Promote Your Club’s 2025 ARRL Field Day With Posters

05/09/2025 05:25 PM
Johns Hopkins University to Hold ARRL Teachers Institute

A session of the ARRL Teachers Institute on Wireless Technology (TI) is being hosted this summer by the Johns Hopkins University Applied Physics Lab in Laurel, Maryland. This marks the first time a major research university has hosted the ARRL program.

The TI program is expanding significantly in 2025. Already, an institute was held on Staten Island, New York, to mark the first regional session....


05/06/2025 07:39 PM
Plan Your Hamvention With ARRL App


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