We’ve probably all had a few conversations with people who hold eccentric scientific ideas, and most of the time they...
General
takes us back to basics in a recent video explaining how magnets, coils, brushed DC motors, and brushless DC motors...
The Federal Communications Commission (FCC) in October 2025 adopted a Report and Order to delete almost 400 obsolete rules pertaining...
Pre-registration is now open for a Student Coding Competition, a new national challenge sponsored by ARRL The National Association for...
The increasing dominance of lithium cells in the market place leave our trusty NiMH cells in a rough spot. Sure,...
Solar activity has been at low levels with only a few C1 flares fromRegion 4307. Slight growth and consolidation were...
It isn’t unusual to expect a precisely regulated voltage in an electronic project, but what about times when you need...
It is well known that pictographic languages that use Hanzi, like Mandarin, are difficult to work with for computer input...
Just because you are paranoid doesn’t mean people aren’t out to get you. Do you think your soldering iron is...
Calendar aging of NMC Li-ion cells at 50 ℃ at various SoCs. (Credit: Wiljan Vermeer, IEEE, 2021) With batteries being...
ARRL The National Association for Amateur Radio® will host the 9th Annual HamSCI Workshop, March 14–15, 2026, at Central Connecticut...
Know someone who’s been curious about amateur radio but hasn’t taken the leap yet? ARRL The National Association for Amateur...
The Federal Communications Commission (FCC) on December 9, 2025, released a long-awaited Report and Order adopting a new amateur radio...
Solar activity reached high levels this past week when Region 4299produced an M1.1 (R1/Minor) flare on December 6. Shortly after,...
For four hours or so, the weather around Seabrook was news heard, if not around the world, at least as...
Friends, I’ve gotten myself into a pickle and I need some help. A few years back, I decided to get...
HamSCI — the Ham Radio Citizen Science Investigation program — is looking for “ping jockeys,” or ham radio operators who...
Higher levels of carbon dioxide (CO2) in the Earth’s atmosphere could harm radio communications by enhancing a disruptive effect in...
Early in the history of the internet, the powers that be granted amateur radio operators over 16 million IPv4 addresses....
Solar activity was at low levels this past week with only C classflares. Region 4294 remains the largest region on...
The fact that there exist in our world flat rocks that make lightning when you point them at the sun...
A group of students at Cornell University is seeking participation from radio amateurs who are equipped with satellite stations for...
The RSGB has launched its official Instagram profile! This addition to the Society’s social media presence will help us to...
EvoHam.com recently launched as a resource for amateur radio operators interested in digital voice modes. The new site focuses on...
If you own a handheld transceiver of any type then the chances are it will come with a “rubber duck”...
