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American Radio Relay League | Ham Radio Association and Resources
The ARRL Solar Report
Spaceweather.com reports solar activity was at low levels with only C-class flares observed. The largest flare during the period was a C8.9 from an unnumbered region beyond the east limb at S13. This region was also responsible for the majority of the remaining flares alongside Regions 4136 and 4137.
An approximate M2 was observed by Solar Orbiter at 10/1326 UTC just beyond the east limb, bri...
AMSAT
ANS-145 AMSAT News Service Weekly Bulletins
AMSAT News Service ANS-145 May 25, 2025 In this edition: Dick Jansson, KD1K, Former AMSAT Vice President – Engineering, SK Nominations Open for 2025 AMSAT Board of Directors Election Updated Digital Edition of Getting Started With Amateur Satellites Now Available HADES-ICM FM Repeater to Be Active Weekends Beginning in Mid-June Changes to AMSAT TLE Distribution for May ... Read more