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Revision as of 03:38, 27 October 2014



Welcome to The Air Raid Sirens Wiki!

This site is about air raid sirens. Most people know what these are, and they've most likely heard the sounds, but how many can tell you what they look like?

What they weigh? How they work? Who makes them? Not many! That's why this site exists--to satisfy anyone who wants to know more about these sirens.

New reader or editor? Need help? Click here.

Did you know?

  • ...that the Surry Power Station's activation sequence for their system results in a distinct "triple windup"?
  • ...that, although having two more cells, the Modulator II 8032B is still 23.64 inches shorter than the Modulator 6048?
  • ...that the national siren system in Denmark is one of the largest single systems using Whelen sirens, with 1,078 sirens covering 80% of the country?
  • ...that the Model 2 is the oldest siren currently in production, dating back to around 1921?
  • ...that Fort McPherson, Northwest Territories, and Cambridge Bay, Nunavut, are home to two of the few sirens located north of the Arctic Circle, both STH-10s?
  • ...that, contrary to popular belief, the "2001-DC" is not a model in itself, but rather refers to battery-equipped units in general?

Selected siren

STH-10 Official.jpg

The STH-10 is an omnidirectional, electromechanical siren that was produced by Federal Signal Corporation from 1955 to TBA, with a second run from 2000 to 2005, when it was replaced by the Eclipse 8. It produces 115 dBc at 100 feet.

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