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 ...

AST wants to use the 430 to 440MHz band for a satellite-to-phone service. Ham radio enthusiasts say the company's plan is vague and could interfere with their slim slice of spectrum.

Ham radio operator Frank Krizan of Texas, who spends his summers in Scarborough, performs "Hunt and Pounce," a method of scanning the radio band for stations waiting for a turn to call them, during ...