A rubidium standard, or rubidium atomic clock, is a high accuracy frequency and time standard, usually accurate to within a few parts in 10 11. This is still several orders of magnitude less than some ...

A few years ago, a friend of mine was trying to build a solar-powered device to automatically photograph the sun in the sky at exactly noon every day through a whole year – the aim, purely for ...

This Atomic Nixie Clock came from the concept of building a simple Nixie clock but it turned out that a WWVB receiver and decoder chip were also employed. This Atomic Nixie Clock came from the concept ...

The author is manager of National Institute of Standards and Technology radio stations WWV/WWVH/WWVB. While radio station WWVB may be familiar to readers of this publication, most people would not ...

NIST radio station WWVB(AM) is trying to improve its signal penetration. The station near Fort Collins, Colo. continuously broadcasts time and frequency signals at 60 kHz. The carrier frequency ...