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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 ]
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 ...
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 ...
The science of long-range sniping came to fruition in the Vietnam War. US Marine Gunnery Sergeant Carlos Hathcock held the record from 1967 to 2002 at 2,286 m (2,500 yd). [12] He recorded 93 official kills. [citation needed] After returning to the US, Hathcock helped to establish the Marine Corps Scout Sniper School at Quantico, Virginia. [13]
It is widely accepted within interdisciplinary circles that for a standard rifle firing full-powered cartridges (e.g. .308 Winchester), "long range" means the target is more than 600 m (660 yd) away, [citation needed], while "extreme long range" is generally accepted as when the target distance is more than 1,000 m (1,100 yd) away from the shooter.
The Long Range Acoustic Device (LRAD) is an acoustic hailing device developed by LRAD Corporation to send messages and warning tones over longer distances or at higher volume than normal loudspeakers. LRAD systems are used for long-range communications in a variety of applications [53] including as a means of non-lethal, non-kinetic crowd control.
Police in Toronto used a sound cannon, or Long Range Acoustic Device (LRAD)—a weapon that was developed for use in conflicts in the Middle East, as well as barricades, pre-emptive arrests and riot units. [27]
2 x Long Range Acoustic Device (Long Range Acoustic System) SITEP MS-424; FFBNW 2 x Oto Melara ODLS-20 decoy launchers; Armament: 1 × Oto Melara 127 mm/64 Vulcano with Automated Ammunition Handling System (AAHS) 1 × Oto Melara 76 mm/62 Strales Sovraponte anti-aircraft gun; 2 × Oto Melara Oerlikon KBA B06, remote mounting