Amateur Radio News

The Kuwaiti satellite QMR-KWT-2 will transmit special SSTV images celebrating the 5 year launch anniversary of the QMR-KWT-1 satellite. QMR-KWT 2 builds on the achievements of QMR-KWT 1, which was launched in…

An international group of operators will be on the air throughout the month in a mutual celebration of International Cat Day and International Dog Day. The combined special event stations will be…

Technical papers are sought for the Proceedings of the (second annual) Zero Retries Digital Conference (ZRDC) 2026, to be held at the Roundhouse Conference Center in San Ramon, California, USA on Friday,…

The following is a message from Josef (OE3JJS): SDRoxide is a completely new project written in Rust, supporting many SDR interfaces (CAT/Audio, CAT/IQ, SoapySDR, HPSDR, TCI) and with loads of features built…

The UmKA-1 (RS40S) satellite is scheduled to conduct special transmissions for International Moon Day between July 20th and July 26th. Those listening can expect a mix of special audio clips as well…

In this episode, we join Martin Butler M1MRB, Chris Howard (M0TCH), Martin Rothwell (M0SGL), Frank Howell (K4FMH), Bill Barnes (WC3B) and Leslie Butterfields (G0CIB) to discuss the latest Amateur / Ham Radio…

APRS On the Air Let’s create a new Amateur Radio activity and supporting software that brings the activator-and-chaser game of Parks on the Air and Summits on the Air to APRS. K0TFU…

Greetings Olivia and digital mode operators, GREAT NEWS! WEBSITE UPDATE! Here are the big three new features: Live Olivia spotting. Just like on POTA and other sites, this is a live show…

 If you have not read Part 1 of this post, go HERE and then make your way back.To recap, I was having an issue with my Hustler 4BTV vertical antenna, and I…

Parks On The Air (POTA) has exploded in popularity, with most of the activity on the HF bands. That makes sense — HF gives you the long-distance contacts and the big pileups.…

If you ever make it to DNA Pizza in San Francisco, you may feel as though you’re being watched. The Eye of the Pizza is Upon You. Or, it was, …read more

As we’ve seen many times before, there’s usually some way wrangle a bit more life out of what would otherwise be considered old and obsolete technology. Perhaps one thing that …read more

Logging and telemetry in remote controlled racing is a great thing, and not only does [jwachlin]’s Open RC Spotter do a fantastic job of that, it has quite a few …read more

[Evgenij Spitsyn] spotted a KVM build on these very pages some time ago. That inspired their own build, leveraging the versatility of the ESP32-P4 microcontroller. The concept is straightforward. Named …read more

[Attoparsec] occasionally rides a bicycle for transportation, but with the major downside of doing this in North America, a place where bicycle infrastructure is generally neglected. From snow removal, maintenance, …read more

We had a great time at Hamvention 2026, catching up with folks from the community and meeting many new faces along the way. Throughout the weekend, we welcomed a steady stream of…

As ARDC’s grants program continues to evolve, understanding the outcomes of funded projects remains an important part of our work. The Grants Evaluation Team (GET), now in its third year, helps support…

We’re excited to be heading back to Hamvention this year! You’ll find us at Booth #1302 / #1402 in Building 1 (Maxim), where you can learn more about our grants program and…

Below is a guest contribution from Phil Kern VK5PK, a 44Net user. If you’re a 44Net user and are interested in submitting a guest contribution, please reach out to comms@ardc.net. Summary Australian…

We’re pleased to welcome a new group of volunteers to ARDC. These volunteers bring a wide range of experience and perspectives, and their contributions are essential to supporting ARDC’s mission. Our volunteer…

25 March 2025: new posts on small feedlines and how to measure feedline characteristics measuring your feedline adventures with small feedlines measuring velocity factor measuring characteristic impedance measuring feedline loss factors that…

20 February 2025: added more beginner articles on SWR and impedance, including →Read more

4 February 2025: added some additional devices to Alternatives to Knots page. →Read more

31 January 2025: added results of further testing to dipole length tables. →Read more

15 January 2025: Added a new article on tuning antennas with an antenna analyzer or VNA, discussing which of the many different possible measured parameters are most useful. →Read more