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A long-range acoustic device (LRAD), acoustic hailing device (AHD) or sound cannon is a specialized loudspeaker that produces sound at high power for communicating at a distance. It has been used as a method of crowd control , which has caused permanent hearing damage , having an extremely high decibel capacity (up to 160 dB measured at one ...
Genasys Inc. is based in San Diego, California.Its long-range acoustic device (LRAD) products are used for long-range acoustic hailing and mass notification. Its software-as-a-service product suite, the Genasys Protect Platform, that includes ACOUSTICS, ALERT, CONNECT (formerly Evertel), and EVAC (formerly Zonehaven), is used for emergency alerting, notifications, evacuations, secure ...
The Long Range Acoustic Device (LRAD) is an acoustic hailing device developed by Genasys (formerly LRAD Corporation) to send messages and warning tones over longer distances or at higher volume than normal loudspeakers, and as a non-lethal directed-acoustic-energy weapon.
The sale to Kaman meant Friedlein could retire and Gooday could see the brand grow with Kaman. Kaman downsized their music division in 1997 and sold the company to a trio of Trace Elliot directors, who took ownership of a brand with nearly 200 staff on a 110,000-square-foot (10,000 m 2 ) site; they focused on exploiting the North American ...
A long-range acoustic device produces a 30 degree cone of audible sound in frequencies within the human hearing spectrum (20 - 20000 Hz). An LRAD was used by the crew of the cruise ship Seabourn Spirit in 2005 to deter pirates who chased and attacked the ship. [ 3 ]
Meanwhile, Project Jezebel and Project Michael focused on studying long range acoustics in the ocean. [ 1 ] [ 3 ] [ 18 ] From 2–19 January 1952 the British cable layer Alert installed the first full sized, 1,000 ft (304.8 m) long, forty transducer element operational array in 240 fathoms (1,440.0 ft; 438.9 m) off Eleuthera in the Bahamas.
ATC (now named LRAD Corporation) spun off the technology to Parametric Sound Corporation in September 2010 to focus on their long-range acoustic device (LRAD) products, according to their quarterly reports, press releases, and executive statements. [12] [13]
This category is for articles about military equipment introduced during the period 2000-2009. 1950s; 1960s; ... Long-range acoustic device; LS PGB; LT PGB; M. M05 ...
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