Considering how integral it is to our modern way of life, you could be excused for thinking that the Global...
General
Nuclear batteries are pretty simple devices that are conceptually rather similar to photovoltaic (PV) solar, just using the radiation from...
Solar activity remained at low levels this past week. Region 4436 wasresponsible for the majority of the C-flare activity, including...
It’s a tradition for Hamvention® … it must rain for at least part of at least one day … and...
Hamvention® 2026 in Xenia, Ohio, is officially under way, with large crowds filling the five exhibit halls, four forum rooms,...
Hamvention® 2026 in Xenia, Ohio, officially begins on Friday morning, May 15. But several hundred hams arrived early to take...
It is an old trope in submarine movies. A sonar operator strains to hear things in the ocean but dares...
Some might say the venerable Z80 doesn’t need another operating system, but obviously disagrees. He has come up with a...
The Garden School Amateur Radio Club in Jackson Heights, New York, K2GSG, was started in September 2016 as a way...
The Boston Software Defined Radio User Group, SDR-Boston, is hosting the New England Workshop for Software Defined Radio 2026 (NEWSDR),...
Batteries are notoriously difficult pieces of technology to deal with reliably. They often need specific temperatures, charge rates, can’t tolerate...
For many hams, portable operating starts simply: a wire in a tree, a folding chair, and the lure of making...
Hamvention® 2026 is just over a week away, and the world’s largest in-person amateur radio gathering promises another three-day weekend...
Solar activity was at low levels this past week with occasionalB-class and isolated low-level C-class flares. The largest event ofthe...
Raspberry Pi 5 price increases. (Credit: Jeff Geerling) Although easily dismissed by some as another cruel April Fools joke, Raspberry...
As literally everything ought to be able to play DOOM in some fashion, recently set out to make the venerable DNS...
Recently had one of his Cyclenbatt LiFePO4 batteries die after only a few dozen cycles, with a normal voltage still...
There were a plethora of tiny, local ISPs in the days of dial-up internet. Along with the big providers, many...
The humble NE555 has been around for over five decades now, and while during that time we’ve seen a succession...
Ever wanted to operate amateur radio satellites but felt intimidated by tracking the “birds” or unsure about the equipment needed?...
This announcement was originally published in the ARRL Letter on February 19, 2026. ARRL members can subscribe to the weekly ARRL Letter...
The ARRL Foundation’s 2025 Bill Orr, W6SAI, Technical Writing Award has been awarded to Dr. Ethan Miller, K8GU, and Dr. Nathaniel A....
Make the most of your time at Dayton Hamvention® with the free ARRL Events app. Hamvention is the world's largest...
On April 21, 2026, the Federal Communications Commission (FCC) granted AST SpaceMobile limited authorization when not over the United States...
This announcement was originally published in the ARRL Letter on December 18, 2025. ARRL members can subscribe to the weekly ARRL Letter...
