On the video there is:
Federal Mods
2001's

and
ATI'S

This is a news report and skycam with sirens from Last weeks tornadoes.
http://youtube.com/watch?v=f5TTWGZPyHc

How about this (non vehicle or outdoor related)
, it's a burglar alarm demo.
https://www.mybrinks.com/home/si_interactivekeypad.aspx

Alasiren: That is exactly what I was talking about and in this link contains some pretty eerie pictures of the gas fire. http://www.newschannel5.com/global/story.asp?s=7830273 The sad thing is, is that I can not find the one by News Channel5. The reason I want that one is because it was on the sky c...

mgear: I didn't see the wall cloud. I live several miles SE of downtown area. As for Vanderbilt; there's no siren on the Children's Hospital. There is a 2001 atop Lupton Hall(dorm) which is a few blocks from the hospital. Vandy also has some Modulators. Most of them are single cell. I know there's ...

Melvin, did you see the wall cloud coming down on the Batman Building?
Also what kind of siren is on the Vandi Children's Hospital?
The reason I ask is because it sounded like a mod yet it was rotating.

Or paperweight .

Yes, I am going to post the clip I recorded it.

jkvernon wrote:The ATI in the Flintstones video uses a clip from an STL10. It's not an original tone. It's actually causing all these driver failures because it's so low pitched.

Well that explains the really nice tone.

I've heard that not only are ATI sirens built like crap, they also sound like crap. I just did a search on YouTube for ATI siren videos, with no results. If anyone has an audio or video clip of one of these in action, I'd like to hear how bad they actually sound. I hope they just keep the ACA siren...