WASHINGTON (Army News Service) -- The Defense Advanced Research Projects Agency is working now to develop a backup system to be used by service members in the event that access to the Global ...

Map of Canada showing prospective radio receiver sites. Bob Marshall is studying the interaction of high-energy particles in orbit around Earth using an unlikely data source: radio signals sent by the ...

If you need to generate a radio frequency electrical signal, you will make some form of electronic oscillator. We’ll probably all be used to oscillators using transistors, tubes, logic gates or a host ...

Researchers at the National Institute of Standards and Technology (NIST) have demonstrated that quantum physics might enable communications and mapping in locations where GPS and ordinary cellphones ...