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ARRL News- Experimental Station to Commemorate Fessenden Transmission December 24 December 23, 2024Brian Justin, Jr., WA1ZMS, of Forest, Virginia, will operate experimental station WI2XLQ on 486-kHz AM for the Reginald Fessenden commemorative transmission starting approximately at 22:00 UTC on December 24, 2024.Transmissions will last for at least 24 hours. A repeat transmission will take place on December 31, also starting approximately 22:00 UTC and running for 24 […]
- ARRL Closing Early Dec. 24, and Closed Christmas Day Dec. 25 December 23, 2024ARRL The National Association for Amateur Radio® will close our headquarters early at 12 PM Eastern Standard Time (1700 UTC) on Tuesday, December 24, 2024, and will be closed all day on Wednesday, December 25 for Christmas. The ARRL Headquarters lobby and store, as well as W1AW, will be open to visitors from 8 AM to 12 […]
- The K7RA Solar Update December 20, 2024Excellent HF conditions greeted hams in the ARRL 10-Meter contestlast weekend. Recent indicators show a sudden shift to two digitdaily sunspot numbers from three, and although there is nothingsignificant about 100, it makes one notice.All daily sunspot numbers this week were 97 or less.Perhaps this indicates a move off of solar maximum, or to a […]
- The K7RA Solar Update December 13, 2024Average daily sunspot number plummeted to 104.4. Weekly Commentary on the Sun, the Magnetosphere, and the Earth's Ionosphere for December 12, 2024 from OK1HH: "The high solar activity in October this year suggests that this may have been the peak of an 11-year cycle. This is not to say that solar activity will not continue […]
- ARRL Teachers Institute on Wireless Technology Now Accepting Applications for 2025 Cohorts December 13, 2024The ARRL Teachers Institute on Wireless Technology (TI) continues to grow. Fresh off a highly successful YouTube telethon that raised more than $41,000 for the program, some of next year’s dates have been announced. Applications are now open.The program is growing, and educators will have the opportunity to attend sessions around the country. “We love […]
- Experimental Station to Commemorate Fessenden Transmission December 24 December 23, 2024
HF Propagation and Solar Data