What if you could broadcast signals across the globe using just a credit-card-sized computer and a handful of components? It might sound like a scene from a sci-fi novel, but with a Raspberry Pi and ...

We’ve been loving the variety of entries to the 2025 One-Hertz Challenge. Many a clock has been entered, to be sure, but also some projects that step well outside simple timekeeping. Case in point, ...

On July 22, 2025, Radio World republished one of my articles from October 25, 2011. The title was, “Rebuild That Relic of an AM Transmitter.” The idea of the article is to keep an old tube-type AM ...

Having been an amateur radio operator for more than 67 years (and an occasional contributor to Radio World), I want to compliment Mark Persons on his article in the Oct. 27 issue. It is the best ...

The familiar real estate adage “location, location, location” rings true these days for huge tracts on the outskirts of major cities — sites that for decades housed AM radio towers but that today ...

Through Dec. 24, children can talk to Santa — all they need is access to amateur radio equipment. Children, also known as “little harmonics” in amateur radio lingo, can call “the North Pole” through ...