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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 ...
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 ]
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. LRAD systems are used for long-range communications in a variety of ...
Besides drone and missile defense, it also performs long range surveillance and sensor dazzling. Its purported advantages are high precision, efficient "cost to kill", and power capacity for multiple shots. [1] As of 2024, higher-power laser weapons in the 150 to 300 kW range are being tested against anti-ship cruise missiles. [3] [4]
The city of Chicago sued Glock Inc. on Tuesday, alleging the handgun manufacturer is facilitating the proliferation of illegal machine guns that can fire as many as 1,200 rounds per minute on the ...
Chicago Police Department and other agencies have found around 1,100 illegal machine guns linked with crimes including aggravated assaults, kidnappings and homicides.
(The Center Square) – Illinois State Rep. La Shawn Ford is again caling for change after new data shows more than 2.5 times as many red-light camera tickets were issued on Chicago’s South Side ...
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 ...