Two years ago, in my home state of Kentucky, we had a devastating tornado that traveled nearly 200 miles, leveled towns, killed scores of people, and left widespread devastation. When emergency ...

Tom Beckett gestures toward a window on the third floor of the Durham County Main Library. “We’re in the middle of a geomagnetic storm,” he announces. The room chuckles. There are no swirling vortexes ...

For those starting to wade into radio as a hobby, one of the first real technical challenges is understanding trunked radio systems. On the surface, it seems straightforward: A control channel allows ...