If you've been listening to your trusty old police scanner, you may be missing something: half the action. Douglas County in Minnesota has started broadcasting on a new digital frequency and some ...

Luzerne County’s new digital 911 communication system goes live in less than three weeks, county 911 Executive Director Fred Rosencrans said. That means time is ticking down for fans of listening to ...

Basic operation of mmWave imaging. Key components of mmWave imaging: transmitter, receiver, multichannel ADC. How to build a setup for security scanning systems and similar applications.

Police scanner apps allow you to listen to radio feeds, whether you're a hobbyist interested in police communications or want to learn about local police and crime in your neighborhood. Zeroing in on ...