Before the second world war Radio was a revolution in mass-communication much like the internet today. Fortunes were made and lost, empires built, epic patent battles ensued, all of which resulted in ...

A crystal radio is basically a high Q resonator tied to an antenna and an envelope detector. These days the envelope detector is a point contact diode such as a 1N34 Germanium diode. The resonant ...

Crystal Radios are an old standby of GeekDads. For the early mists of time Geekdads have been showing kids how to pull radio stations from thin air with the barest snips from the basement. Here are ...

We may receive a commission on purchases made from links. Despite the rise of smartphones, satellite communication, and modern two-way radios, CB (Citizens Band) radios remain a relevant part of ...

U.S. Army Spc. Colby Welch conducts a radio check inside an abandoned fortress in the Parwan province of Afghanistan in June 2014. The fortress was a staging area for the company's patrol operations. ...

The U.S. Army has awarded L3Harris Technologies a $300 million purchase order to produce thousands of handheld, manpack and small form fit, or HMS, radios. Senate Minority Leader Charles Schumer’s ...

What are ham radios? In short, ham radio operators are amateur radio enthusiasts who communicate with one another via radio frequencies assigned specifically to this community by the Federal ...

AMARC brings together around 1,500 community radio stations in Latin America and the Caribbean. In 2025, it implemented a UNESCO-supported project to enhance the ability of broadcasters from 14 ...

WASHINGTON, Nov. 2, 2011 -- As the Army focuses on its number-one priority of modernizing the network, its first networking waveform radio continues to enhance communications at the tactical edge.

If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission. In case of an emergency, a portable weather radio can be ...