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Tuesday, June 28, 2011


Long Range Acoustic Device - LRAD
American Technology Corp.

LRAD – is a long-range hailing and warning, directed acoustic device designed to communicate with authority and exceptionally high intelligibility in a 15-30 degree beam. LRAD can issue a verbal challenge with instructions in excess of 500 meters and has the capability of following up with a warning tone to influence behavior or determine intent. The "hailing and warning" application for commercial shipping is similar to the successful LRAD deployments by the U.S. Navy on patrol craft in and around the port of Basra, Iraq to communicate with vessels in shipping lanes and around oil terminals, where the device was reported to be effective even at a distance of 1,000 meters. LRAD was originally conceived to support the protection and exclusion zones around U.S. Navy warships. The challenge of interdicting small boats approaching commercial maritime assets is quite similar. LRAD's warning tones command attention at ranges in excess of 500 meters while its directional and highly intelligible voice instructions can unquestionably be heard. LRAD's ability to positively communicate with authority on land or at sea is proving highly effective in creating safe situations out of uncertain ones.

On November 7, 2005 LRAD was first used to foil a pirate attack on a Seabourn Cruise Line luxury cruise. The system was installed as a part of the ship's defense systems, and was activated when pirates attacked the ship with RPGs 160 kilometers off the Somali coast . The pirates failed to board the cruiser. LRAD's maritime application was realized after the 2000 attack on the USS Cole off Yemen, as a way to keep operators of small boats from approaching US warships. The system was evaluated by commercial ship operators, as a non lethal way to ward off pirate attacks. Other applications include armed unmanned surface vehicles, as international maritime law does not allow commercial vessels to carry heavy armament.

For every positive there is a is also used as part of the extension of the behavior modification program unknow to the victims.