Scarey sounding sirens in Del City/OKC, OK area

[kswx29]

Whelens from OKC and Unknown Electro-Mechanical sirens from Del City, OK.
http://www.youtube.com/watch?v=G1skqiRvalI
http://www.youtube.com/watch?v=pQvUWA1WTi8
http://www.youtube.com/watch?v=kv567B403gM

[uncommonsense]

Whelens from OKC and Unknown Electro-Mechanical sirens from Del City, OK.
http://www.youtube.com/watch?v=G1skqiRvalI
http://www.youtube.com/watch?v=pQvUWA1WTi8
http://www.youtube.com/watch?v=kv567B403gM

Nice videos. Your unknown siren is a Thunderbolt 1000T set to a higher chopper voltage. Listen to the wind-down (at :39) in the first video and it becomes really obvious.

[Archon]

The loudest one sounds like a Sentry 8 port

[ver tum]

In the first video, the loudest siren is definitely a Whelen. I also heard several Thunderbolt 1000's, and at least one 1000T or 1003. There may also be an XT22 in the mix as well. The sirens in the second video may all be Whelens. In the third video, I heard a Whelen, an XT22, and a dual tone Thunderbolt.

[holler]

The loudest siren in the first video sounds like a dual tone Sentry.

[jkvernon]

Here's a video closer to that scary sounding siren.

http://www.youtube.com/watch?v=Y6ZLTXBAGS4

There's no way that's a Whelen of any sort. Most likely a Sentry.

[md5]

Here's a video closer to that scary sounding siren.

http://www.youtube.com/watch?v=Y6ZLTXBAGS4

There's no way that's a Whelen of any sort. Most likely a Sentry.

That's a sentry siren, can never miss that sort of tone from any siren.

[holler]

Yep, definitely a 16/8 Sentry.

[ver tum]

I wish they would have gotten the wind-down. It does sound like a Sentry up close, because there are a lot of higher harmonics. It sounds like an eight port single tone siren to me though, but I could be wrong.

[md5]

I wish they would have gotten the wind-down. It does sound like a Sentry up close, because there are a lot of higher harmonics. It sounds like an eight port single tone siren to me though, but I could be wrong.

I still say it's a Sentry siren, hehe.

Have sirens south of me that are Sentry. Can't mistake that sound.