a web of giant radio antennas that make up the world’s biggest and most sensitive scientific telecommunications system. NASA ...

Communicating walkie-talkie style PTT is a 20-year-old technology that works in a similar way to walkie-talkies. It's a two-way radio communication system in which the user pushes a button to ...

"We are thrilled to introduce the PTT-284G Push To Talk Over Cellular walkie talkie radio to our customers" The PTT-284G stands out in the market as a highly affordable option without compromising ...

If I ask you to picture a radio telescope, you probably imagine a large dish pointing to the sky, or even an array of dish ...

Voyager 1 switched to a very old backup radio transmitter, not used since 1981, restoring NASA’s contact amid communication ...

Trunked radio systems can be difficult to wrap one’s mind around, and that’s partially by design. They’re typically used by organizations like police, firefighters, and EMS to share a ...

In the UK, our digital broadcast radio uses a system called DAB, for Digital Audio Broadcasting. There are a variety of standards used around the world for digital radio, and it’s fair to say ...

Using the CHIME telescope, an international team of astronomers has detected a new repeating fast radio burst (FRBs) source ...

Officials said the new Iowa Statewide Interoperable Communications System lets them communicate across the entire state.

Using the eponymous company's proprietary hardware, you can view security footage from actual cameras and communicate with actual UHF or VHF two-way radio systems. The free version limits you to a ...