Normally when you think solar projects, you think of big photovoltaic cells. But a photodiode is just an inefficient, and...
General
“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...
September is National Preparedness Month, which is a good time to look at your personal, family, and community resilience levels....
Updated 8/29/25 FCC Batch Filing System Restored On Friday, August 29, 2025, the FCC’s Electronic Batch Filing (EBF) system was...
Solar activity was at low levels on 18, 20, and 21 August with only C-class flares observed. Activity increased to...
Learning Morse Code is no longer a requirement for HAMs in many jurisdictions, but it’s still a nice skill to...
WarGames fans, rejoice: has rebooted WOPR for real. In his latest hack, the Falcon, he recreates the iconic AI from...
The HP 115BR is not one of the most well-known products from Hewlett-Packard. And yet, it was remarkably important nonetheless....
Designs for Discreet Amateur Radio Operating! Stealth Antennas for Ham Radio is full of antennas to get you on the...
We’ve been loving the variety of entries to the 2025 One-Hertz Challenge. Many a clock has been entered, to be...
ARRL honors the work of amateur radio operators who grow the hobby by advancing technology used within, and the operating...
A respected member of the DXing community has passed away. Lou Dietrich, N2TU, became a Silent Key on August 15...
On August 22, Spaceweather.com reports a fast-moving Coronal MassEjection, or CME, left the Sun on August 21. However, it is...
What color do you like your microcontroller boards? Blue? Red? Maybe white or black? Sadly, all of those are about...
always has interesting blog posts and videos, even when we don’t understand all the German in them. The latest? Computer...
ARRL The National Association for Amateur Radio® has announced that the candidates for the 2025 ARRL Division elections are now...
The Kopernik Observatory put out a call last week for hams to receive and decode transmissions from a launch by...
Alexia Snethen, KM6LGG, of Fremont, California, has been awarded The Goldfarb Memorial Scholarship by the ARRL Foundation. The award, endowed...
One of the categories we chose for the One Hertz Challenge is “Could Have Used a 555.” What about when...
