Solar activity reached moderate levels this past week. An impulsiveM1.0 flare was observed on September 24 from Region AR4217. Slightgrowth...
General
Oh, Radio Shack. What a beautiful place you once were, a commercial haven for those seeking RC cars, resistors, and...
The National Conference of Volunteer Examiner Coordinators (NCVEC) Question Pool Committee (QPC) has announced the immediate removal of Extra-Class question E6D07 from...
Back in the day, an FM bug was a handy way to make someone’s annoying radio go away, particularly if...
wrote in with his newest clock build — and he did warn us that it was minimalist and maybe less...
Heating things up is one of the biggest sources of cost and emissions for many industrial processes we take for...
Interested in playing with ultra-wideband (UWB)? recently put together a fairly comprehensive getting started guide featuring the AI Thinker BU03...
Anyone who’s spent significant amounts of time salvaging old electronics has probably wished there were a way to take apart...
The 3YØK DXpedition to Bouvet Island has packed its shipping container of gear. The team spent the weekend near Oslo,...
The Diné (aka Navajo) people have been using their weaving as trade goods at least since European contact, and probably...
Radio amateurs are valuable resources to their communities in times of crisis. This week, hams in Connecticut were featured in...
ARRL Section Managers from around the country were at ARRL Headquarters for a training workshop on September 13, 2025. They...
Solar activity was at low levels this past week. Low-level C-classflaring was observed from Regions AR4216 and AR4217, as well...
A few days ago we brought you word that Google was looking to crack down on “sideloaded” Android applications. That...
An adult human can produce about 100 Wh of mechanical power whilst cycling, which is a not inconsiderable amount if...
The Bella Vista Radio Club (BVRC) in northwest Arkansas, an ARRL Special Service Club, found a good outreach opportunity with...
Amateur radio volunteers serving in the ARRL Amateur Radio Emergency Service® (ARES®) and the National Weather Service SKYWARN® program were...
Below are the results of our recent Section Manager nomination period for the term beginning January 1, 2026, and declared...
National Preparedness Month – Ham Radio Supply List As the tornadoes that struck Massachusetts on September 6, 2025, demonstrate, you...
Solar activity has been at very low to low levels this past week. Low level C-class flaring was observed from Regions...
was experimenting with GNU Radio and an RTL-SDR dongle. He created an SSB receiver and, lucky for us, he documented...
Data centers and the electrification of devices that previously ran on fossil fuels is driving increased demand for electricity around...
Enjoy On the Air magazine with a collection of colorful articles featured in issues from 2020-2021 and 2022-2023. The On...
Team USA brought home both individual and team medals from the 22nd World Championships of Amateur Radio Direction Finding (ARDF),...
Designing a circuit is a lot easier on paper, where components have well-defined values, or lacking that, at least well-defined...
