October 3, 2025

This Week in Amateur Radio

North America's Premiere Amateur Radio News Magazine

via the ARRL: The ARRL Solar Report

Read more at ARRL.org

Solar activity has been at low levels with mostly weak C-class flares observed from Regions 4172 and 4180.  The largest flare of the period was a C6.8/Sf at 15/1037 UTC from Region 4172.  There are 12 regions on the disk with most being simple in magnetic complexity.  Region 4172 remained the largest region on the disk and continued to decay with its magnetic field decreasing in complexity. All…

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