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.
Products (Total Items: 28 )
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Vesper Marine XB-6000 AIS Transponder
Average Rating(3)
$599.00
In Stock
AMEC WideLink B600 Class B SOTDMA AIS Transponder
Average Rating(5)
$649.00
Out of Stock
em-trak B921 Class B CSTDMA AIS Transponder
Average Rating(0)
Sale
$699.99  $639.99
In Stock
Vesper Marine XB-8000 AIS Transponder with WiFi
Average Rating(14)
$740.00
In Stock
Navico NAIS-500 Class B AIS with GPS-500 Antenna
Average Rating(0)
$829.00
In Stock
Digital Yacht AIT1500 NMEA2000 Class B AIS
Average Rating(0)
$849.99
In Stock
em-trak B951 Class B SOTDMA AIS Transponder
Average Rating(0)
Sale
$849.99  $759.99
In Stock
Garmin AIS 800 Class B Transponder
Average Rating(0)
$899.99
Out of Stock
em-trak B923 Class B CSTDMA AIS Transponder with Integrated Splitter
Average Rating(1)
Sale
$949.99  $839.99
In Stock
Icom MA-510TR AIS Transponder with GPS Antenna
Average Rating(0)
$999.95
In Stock
Simrad V3100 Class B AIS
Average Rating(0)
$1,049.00
Out of Stock or Not Currently Available
AMEC P200 Chart Plotter with Built-in SO class B AIS
Average Rating(0)
$1,049.00
Out of Stock or Not Currently Available
em-trak B953 Class B SOTDMA AIS Transponder with Integrated Splitter
Average Rating(2)
Sale
$1,049.99  $949.99
In Stock
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