Recent content by ARRL

Solar activity reached high levels this past week when Region 4299 produced an M1.1 (R1/Minor) flare on December 6. Shortly after, the region produced an M8.1/2b (R3/Strong) flare, also on December 6. Associated with the M8.1 flare was a 1,100 SFU Tenflare, a 1,143 km/s Type II sweep and a Type...

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The Federal Communications Commission (FCC) on December 9, 2025, released a long-awaited Report and Order adopting a new amateur radio spectrum allocation in the 60-meter band that was approved for world-wide use on a secondary basis in the WRC-15 (World Radiocommunication Conference 2015) Final...

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Solar activity was at low levels this past week with only C class flares. Region 4294 remains the largest region on the disk but is appearing to be simplifying magnetically. Region 4296, on the other hand, gained a delta region in its intermediary region, though with no corresponding increase in...

A group of students at Cornell University is seeking participation from radio amateurs who are equipped with satellite stations for help in listening for signals from a retroreflective laser sail that is scheduled to be deployed later this week. The sail is currently attached to a 1U CubeSat...

Don’t miss it! The annual YouTube telethon to raise money for the ARRL Teachers Institute on Wireless Technology will be held on Saturday, November 29, 2025, beginning at 3 PM EST / 12 PM PST, on the Ham Radio Crash Course YouTube channel, hosted by Josh Nass, KI6NAZ. Join Nass and several...

Solar activity has remained low this past week. The largest flare was a C9.9 on November 19 from a region just beyond the NE limb near N17. Region 4284 grew slightly in the early part of the period but was in decay after November 19. New Region 4287 was numbered. A Type II radio sweep...

ARRL The National Association for Amateur Radio® announces the results of the 2025 ARRL Division elections. In the ARRL Pacific Division, current Director John Litz, NZ6Q (1,270 votes), of Stockton, California, was declared the winner, defeating Bob Vallio, W6RGG (960 votes). In the...

NOAA’s National Weather Service (NWS) has announced the cancellation of SKYWARN™ Recognition Day (SRD) 2025. The necessary time and resources required to plan a comprehensive national event for SKYWARN™ Recognition Day 2025 are not available this year. Thus, the difficult decision was made to...

ARRL The National Association of Amateur Radio® reports that the FCC has extended the filing deadline to March 5, 2026, for amateur radio licenses that otherwise were due to expire from October 1, 2025, to March 5, 2026. The announcement is included in an FCC Public Notice (DA-25-943) released...

Amateur radio operators throughout the US and Canada are getting ready for one of the most anticipated weekends of the year. The 2025 ARRL November Sweepstakes phone (SSB voice) contest takes place November 15 - 17, beginning at 2100 UTC Saturday and running through 0259 UTC Monday. The CW...

There were two nights of visible aurora throughout the continental US and dead HF bands due to a severe geomagnetic storm caused by what Space.com calls "a colossal X5.1 class solar flare" and associated coronal mass ejection (CME) on Tuesday, November 11. Spaceweather.com for November 14...

Amateur Radio on the International Space Station (ARISS) will mark two major milestones this month with a special Slow Scan Television (SSTV) event aboard the International Space Station (ISS). Beginning November 12 through November 20, the station will transmit a series of 12 commemorative SSTV...