Good Question: How Do Tornado Sirens Work?
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Published 2016-04-12
All Comments (21)
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I sure wish that we had more sirens in Canada. We usually only use them as fire sirens in British Columbia.
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The Thunderbolt 1000T on top of the tower either A.) is set on chopper level 7 B.) has an air leak C.) has a reverse-wired blower
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they never answered how they work, haha.
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There are 2 different types of sirens 🚨 There are electric sirens And Non-electric Sirens. The Non-Electric Sirens are powered by a Fan. The fan spins so fast that it chops up the air which causes a high Pitched noise what we call a Siren noise. But There are some sirens that are electric ⚡️ The electric sirens are sirens that do not have a fan. They are programmed to make a high pitched siren noise. Solenoids :) Sometimes sirens can make a hi-lo noise or a pulse Noise. To change the tone of the siren, Solenoids block the air which blocks the noise. Hi-lo is when one solenoid blocks the air and then the next. Pulse is when 2 Solenoids go at the same time. 🌪🚨 We all know some ways the sirens work, But most sirens are turned on by you’re city, Some state test their sirens at different times. Most sirens are tested by the city 🌃 And those are a few things I know about Tornado sirens 🚨 #Sirens #Solenoids
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I thought they were showing how the actual sirens work...
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When I was in elementary school, they had a tornado siren situated right next to our school. Every Tuesday it would go off at 10 am. It was a little scary at first, but eventually you got used to it. There was another one situated on the other side of town right next to another elementary school, too.
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I just wanna know if it's possible to blast Darude sandstorm through the sirens for everyone to hear
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Preset tone patterns are usually put into the sirens during testing, usually in the mornings at 10am at most municipalities. Here are the sound-tone patterns for the test siren activity: The first test firing is the plateau-tone pattern, usually for several minutes. (That is the glissando up, then a steady tone, and then a glissando down to end the sound.) Then there is a break for about 1 or 2 minutes, and the test-firing happens again in test 2. The second test firing is the multiple-sine-wave-tone pattern (the several waves of glissandos up and down), also for several minutes. Tornado siren emplacements are either this option - fixed emplacements (where the sound structure on top does not move when the siren is fired), or rotating emplacements - where the top part of the siren, like a Leslie pre-amp fan on a Hammond Organ, rotates when the siren activates. The siren stops rotating when the sound stops. The tops of those sirens are usually in a hyperbolic shape for maximum output of the siren din for maximum reach so that scores of residents/people can hear the sirens and take action if needed.
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I saw 2 2001’s, 3 thunderbolt 1000t’s a thunderbeam, a model 2, 5, or 7, an alerter, and a mystery siren.
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I live in Lafayette and the tornado siren sounded at 3:07 AM
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I remember seeing this siren at 4 years old
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This is just like the fire alarm at school going off, and then somebody in the school's main office getting on the PA system, saying that there's no fire.
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1:35 ITS THE tornado's toilet
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Das ist doch schön 👍
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Me hearing tornado siren:I think it’s siren head
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My city can't afford a tornado siren, so I put up my own.
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0:39 federal signal 2001-dc
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you press up to 2 buttons normally. unless you are using the siren's control box.
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The sirens in that city are called the ACA Allertor 125. 2001 SRN. Thunderbolt 1000T. RSH10. Here is some videos of the sirens sounding. Notice: these videos are not in the same place. RSH10.https://youtu.be/DFIyoTdaSlM Allertor. https://youtu.be/AHAJhJiLNCU Thunderbolt.https://youtu.be/d9rRSY0dRIU 2001. https://youtu.be/6ndcP-fcvVo
