HF propagation—the ability of high-frequency radio waves to travel long distances—relies on the complex interaction between solar activity and the Earth’s ionosphere. At the core of this process is solar flux, which drives ionization of the ionosphere and determines how effectively radio signals are reflected back to Earth. In this…
Ham Radio
Articles covering topics of interest to the amateur radio community.
Ham Radio Gift Ideas: 10 Picks for Any Budget
It’s always a nice surprise when I open a gift and find out that it’s something to do with my beloved ham radio hobby. It is super thoughtful when friends or family take the risk and buy something they may not know anything about just because it’s something they think…
When Solar Isn’t Enough: Charging LiFePO4 Batteries From the Grid
My Gear of Choice: Jump below to see What Gear Makes the Cut in my Ham Shack As a licensed ham, I rely on lithium iron phosphate or LiFePO4 batteries to keep my gear running 24 hours a day. In fact, I am continuously on backup power. I have utility…
Master the Phonetic Alphabet: Pronunciation Guide and Easy Reference Table
One of the most valuable tools for ensuring clarity over noisy channels is the phonetic alphabet. This standardized system replaces potentially ambiguous letters with easily recognizable words. For instance, saying “Alpha” instead of “A” helps minimize confusion caused by static, poor connections, or accents. The phonetic alphabet currently used by…
Ham Radio and STEM Education: Building Skills, Character, and Opportunities for the Future
Amateur radio has long been a fascinating hobby for technology enthusiasts and communicators worldwide. However, its potential as an educational tool is often overlooked. Now, by integrating ham radio and STEM education programs, educators are offering unique, hands-on learning opportunities that bridge theoretical concepts with real-world applications. From understanding the…
5 Amazing Rescues: How the Wireless Telegraph Revolutionized Early Emergency Communications
Revolutionizing Emergency Communications The invention of Guglielmo Marconi’s wireless telegraph in the late 19th century ushered in a new era of communication. Before Marconi’s breakthrough, sending messages required physical wires or reliance on slower methods like semaphore, carrier pigeons, or written correspondence carried on horseback. Marconi’s invention fundamentally changing how…
6 Important Features to Look for in a Dual-Band Mobile
Shopping for a new dual-band mobile ham radio can feel overwhelming, especially with so many options on the market. Whether you’re a seasoned operator or a newcomer to amateur radio, finding the right VHF/UHF dual-band transceiver is essential not only for reliable performance, but for your own personal satisfaction as…
ITU Region 2 Member Countries
International Telecommunications Union Region 2 (ITU Region 2) covers the Americas, including North America, South America, Central America, and the Caribbean, as well as some Pacific Ocean territories. Here’s a list of countries and territories included in Region 2: North America Canada, United States, Mexico Central America Belize, Costa Rica,…
Navigating the Non-Stop Stream of SDR Radios From China: What You Need to Know
If you’re into ham radio, you probably have a few SDR radios that came from China squirreled away in a drawer somewhere. Platforms like Amazon are stacked with these budget-friendly little devices, and it seems like every month brings a few new models. Features change very little from one model…
6 Reasons the ARRL is Vital to Amateur Radio
In the world of amateur radio, the American Radio Relay League (ARRL) holds a central, invaluable place. Established in 1914, the ARRL has spent over a century supporting, protecting, and growing the amateur radio community. If you’re a licensed amateur radio operator—or “ham”—and you haven’t yet joined or supported the…