High pitched Thunderbolt 1000 or 2001

[ver tum]

http://www.youtube.com/watch?v=-9NHoSfQzPQ&fmt=18

The OP said it was near the DFW airport area, in Irving. If it's one of Dallas's sirens, it's probably a 1000.

[md5]

I'm almost 90% certain that what we are hearing is a 2001. If it was a thunderbolt 1000, I've never heard it's pitch go that high.

[CJ]

I'm almost 90% certain that what we are hearing is a 2001. If it was a thunderbolt 1000, I've never heard it's pitch go that high.

Sounds just a little bit higher than the Mt. Airy 1000 in Cincinnati. Fort Worth has Whelens only, as far as i know, so it must be one of Dallas's sirens.

[Jpressman8]

The frequency kind of sounds like high pitched 1000,but then again video can distort the sound at times.

[CJ]

The frequency kind of sounds like high pitched 1000,but then again video can distort the sound at times.

Distance can change the pitch you hear things at too, can't it?

[Thunderboltlover]

The frequency kind of sounds like high pitched 1000,but then again video can distort the sound at times.

Distance can change the pitch you hear things at too, can't it?

Yeah. That's what I was noticing in Jason's vids of the Cincy sirens in alert for tornado warnings.

Back at this december test when the rotator was still working, it sounded like it was set at level 3

http://www.youtube.com/watch?v=SHupwt2aCb0

Then in later severe weather activations, it sounded like tap 4 (broken rotator)

http://www.youtube.com/watch?v=AlkCp7kxINM

Also in the most recent siren test (still broken rotator)

http://www.youtube.com/watch?v=0nY7U-b2 ... annel[url]

[Thunderboltlover]

I have never heard a 2001 sound this high. This pitch is a high "A", (like the one in Jason's video of the Mt. Airy t-bolt), and the highest I've ever heard a 2001 go is an "F sharp"

So I would have to conclude t-bolt

[Nelso90]

If its in irving, it's an EOWS612.

[Jpressman8]

The frequency kind of sounds like high pitched 1000,but then again video can distort the sound at times.

Distance can change the pitch you hear things at too, can't it?

Yes. Humidity,wind,night vs daylight,fog, and distance are all a factor.
For example in a heavy fog you will hear the low frequency vs the high frequency as low pitches penetrate fog as high frequencies do not. That is why fog horns have a very low pitch. Here is one of my videos for comparison to this one. It sounds like a 1000 set on 7 with some over voltage maybe.
http://www.youtube.com/watch?v=b0bi-dt7nE4

[CJ]

The frequency kind of sounds like high pitched 1000,but then again video can distort the sound at times.

Distance can change the pitch you hear things at too, can't it?

Yes. Humidity,wind,night vs daylight,fog, and distance are all a factor.
For example in a heavy fog you will hear the low frequency vs the high frequency as low pitches penetrate fog as high frequencies do not. That is why fog horns have a very low pitch. Here is one of my videos for comparison to this one. It sounds like a 1000 set on 7 with some over voltage maybe.
http://www.youtube.com/watch?v=b0bi-dt7nE4

Or it could theoretically be a 6-port chopper on setting 7. Nobody knows. Would be awesome to find out what makes the Mt. Airy 1000 so damn high pitched!

As for the one in the background on that video, it has a hint of 1000 rather than 2001 on it.