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The majority of users of the Q Siren are fire departments, although some ambulances and heavy rescue squads have employed the Q-siren. The Q-siren produces 123 decibels at 10 feet (3.0 m) with an operating current of 100 amps at 12 V DC (1.2 kW). [1] Hearing protection is recommended but not required when operating the siren or for anyone in ...
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Siren is a family of patented, transform-based, wideband audio coding formats and their audio codec implementations developed and licensed by PictureTel Corporation (acquired by Polycom, Inc. in 2001). [1]
Rumbler siren. A Rumbler siren is a type of emergency vehicle siren used primarily in the United States.Developed in 2007 by Federal Signal Corporation, and sounding at a low-frequency level, it is designed to be heard by motorists who may otherwise be unable to hear high-frequency sirens due to ambient noise, such as urban traffic.
A Federal Signal Thunderbolt 1003 siren. The Thunderbolt is a mechanical outdoor warning siren that was manufactured by Federal Signal Corporation from 1951 until its production ended in 1991. [1] It is a unidirectional, rotating siren with a large square-shaped horn, and can come in various colors, usually yellow, by request.
The Standard Emergency Warning Signal (SEWS) is a warning siren used in Australia to alert the public of danger. The siren is played over radio, television or public address systems in public places to warn of bushfire , flood , cyclone , tsunami , earthquake or terrorist attack .
Archaic perfume vase in the shape of a siren, c. 540 BC The etymology of the name is contested. Robert S. P. Beekes has suggested a Pre-Greek origin. [5] Others connect the name to σειρά (seirá, "rope, cord") and εἴρω (eírō, "to tie, join, fasten"), resulting in the meaning "binder, entangler", [6] [better source needed] i.e. one who binds or entangles through magic song.
The Ecto-1 (also known as the Ectomobile) is a fictional vehicle from the Ghostbusters franchise.It appears in the films Ghostbusters (1984), Ghostbusters II (1989), Ghostbusters (2016), Ghostbusters: Afterlife (2021), Ghostbusters: Frozen Empire (2024), in the animated television series: The Real Ghostbusters and Extreme Ghostbusters, and in the video games Ghostbusters: The Video Game and ...