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The use of flashing lights and sirens is colloquially known as blues and twos, which refers to the blue lights and the two-tone siren once commonplace (although most sirens now use a range of tones). In the UK, only blue lights are used to denote emergency vehicles (although other colours may be used as sidelights, stop indicators, etc.).
A siren is a loud noise-making device. There are two general types: mechanical and electronic. Civil defense sirens are mounted in fixed locations and used to warn of natural disasters or attacks. Sirens are used on emergency service vehicles such as ambulances, police cars, and fire engines.
A police code is a brevity code, usually numerical or alphanumerical, used to transmit information between law enforcement over police radio systems in the United States. Examples of police codes include " 10 codes " (such as 10-4 for "okay" or "acknowledged"—sometimes written X4 or X-4), signals, incident codes, response codes , or other ...
Their Modulators consisted of 5020s, 3012s, 6024s and 5020Bs. Their EOWS 612 sirens were part of their original SiraTone system and were later on upgraded to UltraVoice controls as the new system utilized them. All sirens sounded in a male voice message that says “ATTENTION! ATTENTION! THIS IS A TEST OF THE EMERGENCY SIREN SYSTEM.
Even officers thought it was a real siren! ... Bird in England Mimicking a Police Siren Sounds Just Like the Real Thing. Natalie Hoage. April 15, 2024 at 11:30 AM. redpip1984/Shutterstock ...
A typical siren found on police stations in Taiwan, seen with loudspeakers around it. Either the yellow mechanical siren or the surrounding electronic sirens are in service. Taiwanese civil defense sirens are erected on police stations and commanded by the nation's Civil Defense Office (民防指揮管制所). The government issues air raid ...
The Huffington Post uploaded and annotated the documents — including court transcripts, police reports, audits and inspection records — uncovered during this investigation. Hover over the highlighted passages to see the source document behind each fact.
This Q2B or "Q-siren" is mounted on a Pierce Platform Aerial Fire Truck owned by the City of Bellingham, WA. The Q2B siren ("Q-siren") [1] is an electromechanical siren that is produced by the Federal Signal Corporation and is most recognizable for its sound, which is trademarked, and the look of the siren.
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