Back in 2009, he built “El Silbo”, a ham ... power to electrical power. The signal is passed through a step up transformer, and used to excite a 75m crystal. Two NPN transistors (in this case ...

A ham radio operator in Idaho must pay a record $34,000 penalty for causing interference with communications during a fire suppression effort. That’s the ruling from the Federal Communications ...

Also: Are wind power generators actually viable at home? I tried one, and the findings blew me away In the aftermath of a catastrophe, ham radio operators play a vital role in relaying messages ...

Ham radio is ... or as much power as you might think. Hams have long known that voice communication is inefficient. Morse code could be the earliest form of digital radio communication, allowing ...