Talk:extremely low frequency
Add topicAppearance
Latest comment: 12 years ago by RJFJR
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)