Many clocks sync with a government radio station that's been proposed to be closed. Scott Simon talks with Thomas Witherspoon of the website The SWLing Post. UNIDENTIFIED PERSON: National Institute of ...

If you tune a shortwave radio to 2.5, 5, 10 or 15 MHz, you can hear a little part of radio history — and the output of some of the most accurate time devices on Earth. Depending on where you are in ...

Once the primary transmission medium for the BBC World Service, Voice of America and Radio Moscow, the shortwave radio bands — 1,800 to 30,000 kHz — are becoming less important to the foreign policy ...

UNIDENTIFIED PERSON: National Institute of Standards and Technology time - this is radio station WWV, Fort Collins, Colo. SIMON: WWV is the oldest continuously operating radio station in the United ...

It may seem improbable that two radio stations that announce the time could end up being world-saving superheroes. But one day Colorado shortwave station WWV and its sister station WWVH in Hawaii may ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Previously, we have taken a look at how cesium clocks, the most-accurate time and frequency ...