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1500Hz

A 1500 Hz tone broadcast by WWV, the radio station of the United States National Institute of Standards and Technology.
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Published by:
Creazilla
Author: Originally uploaded by Denelson83 at en.wikipedia.Source: Wikimedia Commons
Licence:Public Domain (CC0). Free for editorial, educational, commercial, and/or personal projects. No attribution required. More info.
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TypeOGG
Duration00:02.000
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reference toneswwv frequency and time signals

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