Class B AIS Transponders

Class B AIS Transponders are mainly used by recreational vessels and smaller commercial vessels.

Information transmitted by Class B transponders can be "seen" by all AIS receiving equipment. Class B transponders also receive all Class A and Class B AIS transmissions.

All of our Class B transponders are built to high quality, commercial standards and mainly differ in the options available for connecting to other devices. 

There are two types of Class B AIS Transponders:
Class B CSTDMA 2-watt: These transponders are the traditional Class B units, have a transmit range of 5-7 miles and use the carrier sense system for getting a transmission slot. 
Class B SOTDMA 5-watt: This is a new type of Class B transponder. These units transmit with 5 watts of power and typical transmit 10-15 miles. These use the same self-organized slot management system as the commercial Class A transponders.

For more information on the different classes of AIS transponders, visit the US Coast Guard page here
Also be sure to check out our AIS Transponder Comparison Guide.
Featured Products
Products (Total Items: 27 )
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em-trak B921 Class B CSTDMA AIS Transponder
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Vesper Marine XB-6000 AIS Transponder
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em-trak B951 Class B SOTDMA AIS Transponder
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AMEC WideLink B600 Class B SOTDMA AIS Transponder
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Garmin AIS 800 Class B Transponder
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AMEC WideLink B600W Class B SOTDMA AIS Transponder
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Simrad V3100 Class B AIS
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AMEC P200 Chart Plotter with Built-in SO class B AIS
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