Resumen

Título: Distributing UTC(NIST) to industrial time and frequency users.
Resumen: The National Institute of Standards and Technology (NIST) maintains one of the world’s most accurate and stable time scales, UTC(NIST), as well as the NIST-F1 cesium fountain, the primary frequency standard for the United States. These standards are continuously compared to other standards around the world to ensure traceability to the International System (SI) of units, and UTC(NIST) is continuously distributed to industrial and research facilities around the world through a variety of methods and mediums. The most accurate of these methods are remote calibration services that distribute UTC(NIST) to a relatively small number of paying customers. UTC(NIST) at lesser accuracy is freely distributed to many millions of users via NIST radio stations WWV/WWVH and WWVB, the Internet Time Service (ITS), the Automated Computer Time Service (ACTS), and the NIST web clock (time.gov).
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EXT_E-Vie-1.pdf