Rather than measuring the Doppler shift of the returning wave most radar guns use the phase shift ... in her quest to build a crude TSA body scanner.

[Gregory Charvat] decided to see what he could do with this old Police radar gun. It is an X-band device that broadcasts continuous waves and measures the Doppler shift as they echo back.

But, a new sort of radar gun may have us quickly singing their praises. The Virginian-Pilot reports that there's a new tool that will be able to tell officers if a driver is texting rather than ...

William Fox and John Vesecky have discovered that with a little tweaking, a run-of-the-mill radar gun can become an instrument for detecting suicide bombers. The duo found that at a specific ...

In 1989, at the International Players Championships in Miami, the sport debuted a device that didn’t call the serves, but timed them—a radar gun. Serve speeds like Tilden’s had been measured ...