Talk:extremely low frequency

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Latest comment: 12 years ago by RJFJR

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There is a problem with the definition:

We say 3-30 hz (I copied from ELF when converting a redlink)

WP says 3-300 hz

OSHA says 1-300 hz [1]

Not sure how to handle this.RJFJR 17:56, 25 December 2011 (UTC)Reply

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