Arteelx
 
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Re: Post your Mystery Sirens here.

Thu Jul 20, 2017 11:54 pm

The tone that persists in you recording is more than likely reverb from a hill or some other structure that the sound can bounce off of.
Yeah, I initially had the same thought. But if this truly is an echo that I'm picking up, then I would expect the same phenomenon to show up during the spool-down (which didn't happen). But who knows...this siren is quite faint by time it gets to my house, so perhaps I'm too optimistic about my ability to analyze it properly. At any rate, thank you for weighing in on this one. I'll be happy to finally locate this thing, and then the mystery will be solved once and for all.
2T22 or not 2T22...THAT is the question.

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Ryan Kent
 
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Re: Post your Mystery Sirens here.

Fri Jul 21, 2017 12:50 am

I found this siren at the Hope Township Fire Department in Midland County, Michigan.To me it appears to be a Federal Signal Model 5/7. However, I'd feel more comfortable with a second opinion.

Google Maps Street View

Image
Last edited by Ryan Kent on Sat Jul 22, 2017 7:54 pm, edited 1 time in total.

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Valra Bellkeys
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Re: Heard, But Not Seen

Fri Jul 21, 2017 2:15 am

Arteelx wrote:
Thu Jul 20, 2017 1:12 am
I keep hearing this siren near my house, and I am unable to determine what it is or where it's coming from. It goes off at completely random times, usually about once every other day. I'm guessing that it's for some volunteer fire department in my town or a neighboring town, but I've been unable to confirm that. Today, I was fortunate enough to be outside when it went off, so I grabbed my phone and started recording the audio. When I analyze the recording, a few interesting things show up. First, this appears to be a single-tone siren that has a frequency of approximately 470 Hz. But when it spools down, I can see that the steady tone actually persists for a second or two in unison with the spool-down tone, which seems impossible to me. Please see the attached picture of my analysis. Does anybody know what kind of siren this might be? If I know the type, perhaps that will help me to find out where it's located and what it's used for.
Could you possibly upload the audio?
I own: One complete SiraTone, another SiraTone control module, a 1600W MC, 2 old ATI controllers, 2 round ATI horns with drivers, a ATI-DSA 4 thing, a Federal Signal FC, AR timer and Siratrol, and a small CD&F.

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Re: Post your Mystery Sirens here.

Fri Jul 21, 2017 6:24 am

Arteelx wrote:
Thu Jul 20, 2017 5:30 pm
Might be a Whelen 2X00.
Thanks for your help! I'm trying to research the Whelen 2X00, and I can't find that specific model name anywhere (even on Whelen's website). What would Whelen call that particular siren?
Whelen call it the WPS 2800
Seen a: KM Europ, small Klaxon siren and a Gents' of Leicester "ahooga" horn.
Also a big fan of both Apollo and Protec fire alarms.

Arteelx
 
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Re: Post your Mystery Sirens here.

Fri Jul 21, 2017 5:33 pm

Could you possibly upload the audio?
The siren is very faint (that's why I'm having so much trouble finding it). So you can barely hear it in the recording, unless you crank the volume WAY up. And I hit "record" just before the spool-down started. But for what it's worth, here is the recording:
www.drumsetstudio.com/wip_record/weird_siren_again.wav
2T22 or not 2T22...THAT is the question.

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Luke
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Re: Post your Mystery Sirens here.

Fri Jul 21, 2017 6:26 pm

It sounds like an electromechanical siren, maybe a Sentry?
Welcome to Pennsylvania, where test days are few and far between. However, where there is one, you can find the recordings here! https://www.youtube.com/channel/UCTiIF1 ... q5mZXtMDnw

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Re: Post your Mystery Sirens here.

Fri Jul 21, 2017 9:11 pm

That is most definitely a sentry, perhaps a 16v1T-B.
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Luke
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Re: Post your Mystery Sirens here.

Fri Jul 21, 2017 10:16 pm

No, it's single tone, so either a 3V8(H), 7V8(B) or 10V.
Welcome to Pennsylvania, where test days are few and far between. However, where there is one, you can find the recordings here! https://www.youtube.com/channel/UCTiIF1 ... q5mZXtMDnw

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justie1220
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Re: Post your Mystery Sirens here.

Sat Jul 22, 2017 2:31 am



https://www.youtube.com/watch?v=Q3bypZ9rM4I




Cant tell if this is a Sterling or not any guesses guys?
Siren belongs to the Armstrong Co. Pa Station 20 Fire Department
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Rheems1
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Re: Post your Mystery Sirens here.

Sat Jul 22, 2017 2:43 am

]
justie1220 wrote:
Sat Jul 22, 2017 2:31 am


https://www.youtube.com/watch?v=Q3bypZ9rM4I




Cant tell if this is a Sterling or not any guesses guys?
Siren belongs to the Armstrong Co. Pa Station 20 Fire Department
That would be the siren from the Apollo #2 Fire Department just outside of Westmoreland County, here is a pic of it from the Siren Archive. Very interesting that it is an 8 port siren!

Image

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