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Shakespeare 396-1-AIS 4' AIS Antenna Shakespeare 396-1-AIS 4' 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 4 ft 5396-AIS Galaxy AIS Antenna Shakespeare AIS 4 ft 5396-AIS Galaxy AIS Antenna
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Shakespeare 5250-AIS 36" Low-Profile AIS Stainless Steel Whip Antenna Shakespeare 5250-AIS 36" 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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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 AIS 4ft Phase III Antenna 6396-AIS-R Shakespeare AIS 4ft Phase III Antenna 6396-AIS-R
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Digital Antenna 598-SW-S 8' AIS Marine Antenna with 25' Cable Digital Antenna 598-SW-S 8' AIS Marine Antenna with 25' Cable
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Digital Yacht CX4A Commercial AIS/VHF Antenna Digital Yacht CX4A Commercial AIS/VHF Antenna
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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.