Single sideband (SSB) is the most common voice mode for analog communications over HF radio. Its widespread adoption is due in part to its spectral efficiency, with a typical SSB signal occupying ~3 kHz of bandwidth. This efficiency, however, comes with a tradeoff: because only part of the frequency range of human speech is transmitted, … Read More
Every year since I’ve worked at ARDC, in addition to publishing our audited tax returns and financial statements on our website, we’ve done a blog post offering an overview of these documents and how our finances and spending compare to prior year. Every year, I wonder if this exercise is at all useful to people. … 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 visitors to the ARDC booth to learn more about our programs and initiatives, and of course to check out the VT-102! Our Friday … Read More