Using the Five-hundred-meter Aperture Spherical Radio Telescope (FAST), Chinese astronomers have explored the behavior of a ...

Skagit 911 isn’t the only dispatch agency that has moved toward encrypting its radio communications and scanners. Jurisdictions in Indiana, Colorado, California, Nevada and South Dakota encrypted ...

Abstract: Radio frequency fingerprint identification (RFFI) offers a paradigm for the security authentication of the satellite component in automatic identification system (SAT-AIS). This article ...

Thousands of miles from any battlefield, a team of engineers at the University of South Florida is working to prepare soldiers for the increasingly complex electronic environment of modern warfare.

Traditional radio-based systems often suffer severe attenuation underground, as soil and rock absorb or scatter electromagnetic waves. By contrast, magnetic induction uses low-frequency magnetic ...

A scanner listener says the move to encrypt all Westcom dispatch channels, which handles 911 for the western suburbs, is "a hit to police integrity." ...