A few days ago we brought you word that Google was looking to crack down on “sideloaded” Android applications. That...
General
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...
US Space Command headquarters is being moved to Huntsville, Alabama, known as “Rocket City USA.” The move was announced in...
The Northeast HamXposition (“HamX”) — hosting the ARRL New England Division Convention — held on August 21 - 24, 2025,...
The ARRL Teachers Institute on Wireless Technology is getting a boost, courtesy of the ham radio community on YouTube. A...
September is National Preparedness Month, and ARRL is working to arm members with knowledge and resources to be resilient in...
Spaceweather.com for September 5 reports that a total lunar eclipseoccurs on September 7th. However, it will not be visible in...
Normally when you think solar projects, you think of big photovoltaic cells. But a photodiode is just an inefficient, and...
“Sorry, my mic was muted…” With the rise of video calls, we’ve all found ourselves rushing to mute or unmute...
The September/October 2025 issue of The Communicator includes: Field Day and Cross-Border Microwave Activity Propagation Profile: Exploring the Gray Line...
This Labor Day weekend, the Hurricane Watch Net (HWN) celebrates its 60th anniversary of providing critical communications support to the...
ARRL CEO David Minster, NA2AA, is the guest on The DX Mentor YouTube channel this week. The hosts of the...
Sometimes, there are too many choices in this world. My benchtop function generator can output a sine, square, or saw...
We all know that it’s easy to get caught out by fake electronic components these days, with everything from microcontrollers...
Frequency! It’s an important thing to measure, which is why built a frequency counter some time ago. The four-function unit...
