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Solar flare activity is expected to remain at very low levels, with achance for isolated C-class flares through September 19, according toNOAA's Space Weather Prediction Center (SWPC). Solar wind speed wassteady near 530 km/s, and negative polarity CH HSS (coronal holehigh-speed stream) effects are anticipated to persist through September18, with additional enhancements likely today due to flan...
The Yagi-Uda beam antenna was invented 100 years ago, in 1926, and Contest University (CTU) is celebrating its centennial with a live Zoom webinar this Saturday, September 19, 2026, at 1600 UTC (noon Eastern). The free webinar, titled “The Yagi Turns 100,” will be available online at https://w3lif.org/yagi. There is no pre-registration. Click on the link before 1600 Zulu on Saturday to watch. Q...
Solar flare activity was at low levels in the past week withisolated C-class flare activity, according to NOAA’s Space WeatherPrediction Center. The largest flare of the period was a C3.4 onSeptember 8 from otherwise stable Region 4528. Region 4530 developedasymmetric penumbra on both its leading and trailing poles whileundergoing consolidation in its intermediate area. New fluxemergence in the...
To commemorate the 25th anniversary of the September 11, 2001 attacks on the United States, the High-frequency Active Auroral Research Program (HAARP) at the University of Alaska Fairbanks will be making a special transmission on 9.11 MHz at 0030-0035 UTC on September 12, 2026 (8:30-8:35 PM eastern time Friday evening). The transmission will consist of a Morse code QST, followed by a slow-scan ...
Educator Everton Henriques, KD2ZZT, shared his experience using amateur radio to inspire students and bring engineering and technology to life in the classroom during his keynote at the 2026 ARRL New England Division Convention, hosted by Northeast HamXposition in Massachusetts on August 15. A video recording is available on ARRL’s YouTube channel.Everton is an Engineering and Technology Teache...
Ed. Note: Details in this article were culled from the November 2001 QST article, “9/11/01: ‘This is Not a Test’ ” by Rick Lindquist, N1RL, and Diane Ortiz, K2DO. The original article is available here (PDF).Twenty-five years ago, on September 11, 2001, the United States came under attack from al-Qaeda terrorists who hijacked passenger planes and flew them into buildings in New York City and Wa...
Former ARRL Chief Operating Officer (COO) Harold Robert Kramer, WJ1B, of Cheshire, Connecticut, passed away on Monday, August 31, 2026, at age 78. Kramer served as COO and QST Publisher from 2005 to 2016, following a career in broadcasting. He was an ARRL Life Member and donor, supporting the Diamond Club, the Second Century Campaign, and the ARRL Lab.Former ARRL CEO Dave Sumner, K1ZZ, recalled...
This week, we're looking at a few interesting builds, from compact multiband solutions to specific band optimizations. There's a solid 50-watt amplifier project for the HF bands, something that comes up often for those needing a bit more punch without breaking the bank. We also have a couple of vertical antenna designs, one covering multiple bands and another specifically for 20 meters, which is always a popular choice for portable work. For those running an Icom IC-705, there are some practical insights into maximizing its potential in the field. And for stealth operations, a window loop antenna for 20 meters offers a clever approach. These selections should provide some good food for thought for anyone considering their next antenna project or looking to refine their portable setup.
This week, we've pulled together a few items that touch on some persistent challenges and evolving technologies in the shack. There's a practical look at mitigating common-mode issues, something that comes up often when dealing with feed lines and antenna installations, especially for those running higher power or operating portable. We also have a couple of pieces exploring the expanding role of Software Defined Radio, both as a standalone system for advanced modes like Digital Amateur Television and as a valuable companion to traditional transceivers. Finally, a quick nod to the wider RF spectrum with a public safety audio feed, a reminder of the diverse signals out there. It’s a mix that should offer something for those experimenting with RF, optimizing their home station, or even considering satellite operations.
This week, we've pulled together a few items that might spark some interest, particularly for those dabbling in digital modes or looking to refine their station's utility. We're looking at some compact desktop applications that offer a quick glance at propagation and local conditions, something that always comes in handy whether you're chasing DX on HF or just planning a local net. There's also a deeper dive into some hardware for packet and digital radio experimentation, specifically ESP32-based LoRa boards, which are becoming quite popular for everything from APRS to Meshtastic. And for the low-frequency enthusiasts, we found a construction guide for an active loop converter, which could be a real asset for improving reception on the LF band. It’s all about practical enhancements and exploring new facets of the hobby.
This week, we've pulled together a few items that touch on practical aspects of our hobby, from understanding propagation to getting on the air when antenna restrictions are a factor. There's a look at real-time HF conditions using the Reverse Beacon Network, something that comes up often for those chasing DX or just trying to understand band openings. We also have a piece on building a 2-meter skeleton slot Yagi stack, which could be a good project for VHF/UHF enthusiasts looking for something beyond a simple dipole. For those dealing with HOA challenges, there's a discussion on stealth antenna solutions for 40-10m and 80m. And for the digital mode operators, a multi-platform AX.25 terminal program is worth a look. Finally, a historical note on Marconi's early work and a handy ADIF log analyzer round out the selection.
The X-026 finally has a name: Icom has unveiled the IC-7110 at Tokyo Ham Fair 2026, closing four months of teaser campaigns and hamfest mock-ups. Here are the first photos, the confirmed specifications and what the new model means for operators waiting on an IC-7100 successor.
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Open source tool for viewing and 3D visualizing NEC antenna model files directly on your Android device. Simulation and view base antenna characteristics is available. - Listed in Software/Antenna analysis
SWLTools is an iOS application for iPhone and iPad, decoding CW, RTTY, SITOR-B, WEFAX, and ACARS signals. - Listed in Software/Decoders
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