An amateur radio repeater used to be a complex assemblage of equipment that would easily fill a 19″ rack. There would be a receiver and a separate transmitter, usually repurposed from commercial ...

RF repeaters are available for both electronic and optical signals and can support a wide range of modulation formats and traffic capacity. RF repeaters are generally located at higher elevations, ...

which can link individual radios or entire repeaters together over the Internet. While you can make purpose-built modules that will interface with most standard radio inputs, it’s also possible ...

The previous Paralympic logo incorporated the Tae-Geuk, which is a traditional Korean decorative motif. According to oriental philosophy, Tae-Geuk refers to the ultimate reality from which all things ...

The telescope only got up and running last year, detecting 13 of the radio bursts almost immediately, including the repeater. The research has now been published in the journal Nature.

Can you afford to be a foster carer? Money Box looks at the costs involved in fostering children. The incredible story of a lobsterman at sea Mathematician Hannah Fry tells the story of a man lost ...

A hub in a 10Base-T Ethernet network is often known as a multiport repeater because it sends every input signal to all output ports. See 10Base-T and multiport bridge. THIS DEFINITION IS FOR ...

Eleanor Oldroyd: 30 years of "my radio family" Eleanor Oldroyd on 30 years of broadcasting at 5 Live.

ham radio repeaters, air traffic (ATC), and marine radios from around the world. Scanner Radio allows you to listen to most police and emergency service radio. Whether there's a nearby wildfire ...

Photojournalist who risked her life in Gaza asks herself: Can a photo make a difference?

Chihkai Chen Hudson, Ralph E. and Kung Yao 2012. Energy-based cooperative spectrum sensing for emergency communications over fading channels in Cognitive Radio public safety networks. p. 1345.

By Griselda Flores Senior Editor, Latin The future of radio may be difficult to predict, but one thing is clear: Radio is in a good position and adaptable — it’s what makes it ubiquitous ...