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{{Short description|Electronic outdoor warning siren}}
{{Short description|Electronic outdoor warning siren}}[[File:1 Tsunamiwarnsystem in Dili.jpg|thumb|ATI in service]]
[[File:1 Tsunamiwarnsystem in Dili.jpg|thumb|ATI in service]]
In [[civil defense siren]]s, the ATI '''High-Power Speaker Station''' (<!--"Soundblaster"-->'''HPSS'''),<ref>{{Cite web |title=High Powered Speaker Station |url=https://www.atisystems.com/wp-content/uploads/2020/07/Spec-HPSS.pdf |website=www.atisystems.com}}</ref> is an electronic outdoor warning [[siren (alarm)|siren]] manufactured by Acoustic Technology, Inc (ATI) that is used to alert citizens of [[airstrike|air raid]]s and [[natural disaster]]s.
In [[civil defense siren]]s, the ATI '''High-Power Speaker Station''' (<!--"Soundblaster"-->'''HPSS'''),<ref>https://www.atisystems.com/wp-content/uploads/2020/07/Spec-HPSS.pdf {{Bare URL PDF|date=July 2025}}</ref> by [[American Signal Corporation]] (ASC) known as the '''ASC E-Class''', is an electronic outdoor warning [[siren (alarm)|siren]] manufactured by Acoustic Technology, Inc (ATI) that is used to alert citizens of [[airstrike|air raid]]s, and [[natural disaster]]s.


==Systems==
==Systems==
The recent HPSS systems use high-powered electronic speakers, which can be independently arranged to provide directional or omnidirectional coverage, depending on installation. The HPSS16 have 4 speakers and the HPSS32 have 8 speakers. They can also be used as public announcement ([[PA system|PA]]) systems, and can play a number of programmed tones. Options include solar-powered operation pre-recorded voice messages. ATI also sold rotational units of the HPSS16, and HPSS32, called the "HPSS16R" and "HPSS32R", that are now discontinued.
HPSS systems use high-powered electronic speakers, which can be independently arranged to provide directional, omnidirectional, and formerly rotational coverage. The HPSS16 has four speakers, while the HPSS32 has eight speakers. The HPSS16R and HPSS32R are former rotational models that were discontinued. They can be used as public address ([[PA system|PA]]) systems and can play programmed tones. Options include solar-powered operation and pre-recorded voice messages.
[[File:HPSS16 at 3rd and Harrison streets in San Francisco.jpg|thumb|ATI HPSS16]]
[[File:HPSS16 at 3rd and Harrison streets in San Francisco.jpg|thumb|ATI HPSS16]]


==Areas known to use HPSS systems==
==Customers==
* [[San Francisco, California]] - This system is unique featuring the sound of the decommissioned [[Federal Signal]] STL-10 sirens that the HPSS units replaced
* [[San Francisco, California]] - Features the sound of the decommissioned [[Federal Signal]] STL-10 sirens that it replaced
* [[Casitas Dam]], [[Ventura, California]] - This system is unique as they look like the Federal Signal Directional Speaker Array (DSA) sirens, but can have 7–8 speakers per stack, and gray caps on the speaker cones.
* [[Casitas Dam]], [[Ventura, California]] - Looks like Federal Signal Directional Speaker Array (DSA) sirens, but can have 7–8 speakers per stack, and gray caps on the speaker cones.
* [[Indian Point Energy Center]], [[New York (state)|New York]]
* [[Indian Point Energy Center]], [[New York (state)|New York]]
* [[Owasso, Oklahoma]] had 16 ATI HPSS32 sirens that were installed more than 20 years ago. In December of 2023, all 16 HPSS32 sirens were replaced with Whelen WPS-2910 omnidirectional sirens, and a 17th Whelen was installed near Stone Canyon Elementary.
* [[Israel]] has 300 HPSS systems as a part of its warning system.
* [[Israel]] has 3100 sirens as a part of its warning system, and 300 of them are HPSS32 sirens.
* [[Sedgwick County, Kansas]] and the City of Wichita use 27 ATI HPSS32 units.
* [[Sedgwick County, Kansas]] and the City of Wichita 27 ATI HPSS32 units are part of the system's 150 sirens.
* [[Forsyth County, Georgia]] has mostly ATI HPSS16R and ATI HPSS32 systems.
* [[Forsyth County, Georgia]] has mostly ATI hpss16r plus in 2012 added ATI HPSS32 this system back in 2008 replaced some Whelen 28X9 plus in 2022 they added more ATI HPSS32s
* [[Allen, Texas]] has 26 ATI HPSS32 units.
* [[Norcross, Georgia]] Has 10 ATI HPSS 16s that replaced Whelen 2805s 2905s and one 2804. All were directly replaced in 2022
* [[Fort Riley, Kansas]] has 2 ATI HPSS16 units.
* [[Allen, Texas]] ATI HPSS32 units.
* [[Del City, Oklahoma]] has 8 ATI HPSS16 units.
* [[Fort Riley, Kansas]] 2 ATI HPSS16 units.
* [[Malmstrom AFB, MT]] has 6 ATI HPSS16 units.
* [[Del City, Oklahoma]] 8 ATI HPSS16 units.  
* [[Pasig]], [[Philippines]] has 3 ATI HPSS32 units.
* [[Malmstrom AFB, MT]] 6 ATI HPSS16 units
* [[Davao City|Davao City, Philippines]] has at least 11 ATI HPSS32 units.
* [[Pasig]], [[Philippines]] has 2 ATI HPSS32 unit.
* [[Battle Creek, Michigan]] has four rotating ATI HPSS16R units.
* [[Battle Creek, Michigan]] has four rotating ATI HPSS16R units. They run 575&nbsp;Hz alert for tornado warnings.
* [[Menominee, Michigan]] has three early rotating ATI HPSS16R units
* [[Menominee, Michigan]] has three rotating ATI HPSS32R units
* [[Pensacola NAS]], [[Florida]], ATI HPSS16s mostly used for tornado warnings and play the colors
* [[Pensacola NAS]], [[Florida]], ATI HPSS16 (mostly), the sirens on Pensacola's navy base are mostly used for tornado warnings and they play the colors in the morning and evening. When a warning is issued, these siren sound ATI's version of wail signal during tornado warnings. Attack signal or other signals have not been used yet. These siren are silently tested on Fridays.
* [[University of West Florida]] In [[Pensacola, Florida]], ATI HPSS16 sirens here are used for chemical spills, weather warnings, lock downs, and they play the [[Westminster Quarters|Westminster Chimes]].
* [[University of West Florida]] In [[Pensacola, Florida]], ATI HPSS16 sirens here are used for chemical spills, weather warnings, lock downs, and they play a daily Westminster chime tone at noon.
* [[Arnold, Missouri]] 7 ATI HPSS32 units.<ref>{{Cite AV media |url=https://www.youtube.com/watch?v=5YAnYjdAmq8 |title=Arnold, MO ATI Tornado Siren Test |date=2008-10-26 |last=CrazySirenBoy |access-date=2025-07-22 |via=YouTube}}</ref>
* [[Arnold, Missouri]] 7 ATI HPSS32 units which replace the old Whelen WPS 3016 Sirens.<ref>Arnold Missouri Siren Test: https://www.youtube.com/watch?v=5YAnYjdAmq8</ref>
* [[Ketchikan, Alaska]] maintains a system of 3 ATI HPSS32 units.<ref>{{Cite web|url=https://www.krbd.org/2015/08/26/third-siren-added-to-citys-hazard-warning-system/|title=Third siren added to city's hazard warning system|date=26 August 2015}}</ref><ref>{{Cite web|url=https://sites.google.com/site/greaterketchikanarealepc/all-hazard-siren-information|title = Google Sites|url-status=dead}}</ref>{{Dead link|date=July 2026|fix-attempted=yes}}
* [[Ketchikan, Alaska]] maintains a system of 3 ATI HPSS32 units which are tested audibly on the 15th of the month at noon. These sirens are used to warn for tsunamis or in the event of a dam failure.<ref>{{Cite web|url=https://www.krbd.org/2015/08/26/third-siren-added-to-citys-hazard-warning-system/|title=Third siren added to city's hazard warning system|date=26 August 2015}}</ref><ref>{{Cite web|url=https://sites.google.com/site/greaterketchikanarealepc/all-hazard-siren-information|title = Google Sites}}</ref>
* [[Hudson County, New Jersey]] has an unknown number of HPSS sirens.  
* [[Hudson County, New Jersey]] has an unknown number of HPSS sirens. They are supposedly used for nuclear emergencies.*
* [[Antofagasta|Chile, Antofagasta]] has an unknown number of HPSS32 sirens.
* [[Antofagasta|Chile, Antofagasta]] has also an unknown number of HPSS-32 sirens. They are used to warn about tsunamis and fires.
* [[Sarnia, Ontario]] and the surrounding communities use a system of 22 ATI HPSS32 units.
* [[Sarnia, Ontario]] and the surrounding communities use a system of 22 ATI HPSS-32 units to warn of chemical plant spills and accidents, as well as severe weather. They are tested every Monday at 12:30PM. These replaced an older system of ACA Alertronic AL-6000R sirens.
* [[Bandon, Oregon]] use 4 ATI HPSS32's.
* [[Bandon, Oregon]] use 4 ATI sirens. All of these sirens are HPSS32. They test every first Wednesday of the month at noon. These sirens are used to alert people of tsunamis. One of these ATIs replaced a [[Federal Signal]] Model 5.
* [[Palo Verde Nuclear Generating Station]], [[Wintersburg, Arizona]] use over 70 HPSS32 sirens.
* [[Palo Verde Nuclear Generating Station]], [[Wintersburg, Arizona]] use over 70 HPSS32 sirens to warn the area in the event of a radiation release. Sirens are tested once a year in late November or early December.
* [[Cannon Beach, Oregon]] [[Arch Cape, Oregon]] has 6 HPSS32 sirens


==References==
==References==
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{{Civil defense sirens}}
{{Civil defense sirens}}
{{DEFAULTSORT:Ati Hpss}}
{{DEFAULTSORT:Ati Hpss}}
 
[[Category:Sirens (alarms)]]
[[Category:Sirens]]
[[Category:Civil defense]]
 
[[Category:Emergency population warning systems]]
{{Improve categories|date=March 2024}}

Latest revision as of 21:51, 2 October 2026

Template:Short description

ATI in service

In civil defense sirens, the ATI High-Power Speaker Station (HPSS),[1] is an electronic outdoor warning siren manufactured by Acoustic Technology, Inc (ATI) that is used to alert citizens of air raids and natural disasters.

Systems

HPSS systems use high-powered electronic speakers, which can be independently arranged to provide directional, omnidirectional, and formerly rotational coverage. The HPSS16 has four speakers, while the HPSS32 has eight speakers. The HPSS16R and HPSS32R are former rotational models that were discontinued. They can be used as public address (PA) systems and can play programmed tones. Options include solar-powered operation and pre-recorded voice messages.

ATI HPSS16

Customers

References

  1. ↑ "High Powered Speaker Station". https://www.atisystems.com/wp-content/uploads/2020/07/Spec-HPSS.pdf. 
  2. ↑ Template:Cite AV media
  3. ↑ "Third siren added to city's hazard warning system". 26 August 2015. https://www.krbd.org/2015/08/26/third-siren-added-to-citys-hazard-warning-system/. 
  4. ↑ "Google Sites". https://sites.google.com/site/greaterketchikanarealepc/all-hazard-siren-information. 

Template:Civil defense sirens

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