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Shakespeare 5225-AIS a 8' Galaxy Antenna - VHF/AIS - 6dB Stainless Steel Ferrule Shakespeare 5225-AIS a 8' Galaxy Antenna - VHF/AIS - 6dB Stainless Steel Ferrule
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Shakespeare 396-1-AIS AIS Antenna Shakespeare 396-1-AIS AIS Antenna
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Digital AIS Antenna 4Ft 578-S 4.5DB Digital AIS Antenna 4Ft 578-S 4.5DB
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Digital AIS Antenna 4Ft 876-S 4.5DB Digital AIS Antenna 4Ft 876-S 4.5DB
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Shakespeare AIS 4Ft 5396-AIS Galaxy AIS Antenna Shakespeare AIS 4Ft 5396-AIS Galaxy AIS Antenna
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Shakespeare 5250-AIS 36 inch Low-Profile AIS Stainless Steel Whip Antenna Shakespeare 5250-AIS 36 inch Low-Profile AIS Stainless Steel Whip Antenna
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Shakespeare AIS 5215-AIS 36" Squatty Body Antenna for Sailboats Shakespeare AIS 5215-AIS 36" Squatty Body Antenna for Sailboats
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Digital 236-SW AIS Antenna 3'Length, 3dB Gain, with 15' Cable - White Digital 236-SW AIS Antenna 3'Length, 3dB Gain, with 15' Cable - White
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Digital Antenna 598-SW 8' AIS Marine Antenna with 25' Cable Digital Antenna 598-SW 8' AIS Marine Antenna with 25' Cable
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Digital Yacht GV30 VHF/AIS/GPS Combo Antenna Digital Yacht GV30 VHF/AIS/GPS Combo Antenna
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Shakespeare AIS 4ft Phase III Antenna 6396-AIS-R Shakespeare AIS 4ft Phase III Antenna 6396-AIS-R
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Automatic Identification System (AIS)

What is AIS technology used for?
AIS is used by ship operators to provide the highest level of navigational safety. It is also used by some ports to enhance security. AIS uses a shipboard VHF broadcast system to transmit and receive information about other ships, safety messages, environmental conditions and the status of aids-to-navigation (buoys).

As of January 1, 2005, nearly every commercial ship over 65 feet in length in U.S. waters is required to send out identification and GPS information.
How does AIS work?
Static and dynamic navigational data is sent via VHF from ship to ship. Thanks to GPS technology, this data can include a ship's position. Other information broadcast by AIS is electronically obtained from a ship's Gyro Compass.