American Radio Relay League | Ham Radio Association and Resources

• The ARRL Solar Update

  There were two nights of visible aurora throughout the continentalUS and dead HF bands due to a severe geomagnetic storm caused bywhat Space.com calls "a colossal X5.1 class solar flare" andassociated coronal mass ejection (CME) on Tuesday, November 11.Spaceweather.com for November 14 reports that a NASA model of thelatest CME suggests that it could deliver a glancing blow to ourplanet's magnet...

• Get On the Air for 2025 ARRL November Sweepstakes

  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 (Morse code) event was held 2 weeks ago, Nov. 1 - 3.November Sweepstakes, sponsored by ARRL The National A...

• Images Beamed from Space Celebrate 25 Years of Ham Radio on the ISS

  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 images, pausing only for a scheduled educational contact.The “SSTV Spacetacular” will highlight both...