http://www.youtube.com/watch?v=_7zIN7IdVpA
http://www.freesound.org/samplesViewSingle.php?id=58315
KAHUKU, Hawaii- Turtle Bay Modulator test on Fri 8/1/08 at 11:45 AM. It sounds for three minutes. Normally it would sound for 40 seconds. Nonfunctional Modulator video from March 2008
In June 2008 I reported the Modulator was back in operation and did a three minute alert as well.