Home » Shop Products » Bridge & Navigation » Navigation » AIS » T200B-S AIS Class B CSTDMA Transponder with Internal Splitter



T200B-S AIS Class B CSTDMA Transponder with Internal Splitter

SKU: COM-0002

The T200B-S is a compact and rugged AIS Transponder with a built-in Antenna Splitter, designed for the demands of the small commercial boat, fishing boat and leisure markets.

It meets the Class B standard, allowing vessels not required to fit Class A units to voluntarily install an AIS Transponder.

When connected to an external VHF antenna and a GPS antenna (not supplied), the T200B-S will transmit its vessel position and data and receive information from other AIS vessels, shore stations and navigational aids within the VHF range.

The built-in Antenna Splitter allows the unit to share a single VHF antenna with a VHF radiotelephone, eliminating the need for a second VHF antenna on the vessel and reducing installation time and cost. Additionally, the unit has an FM radio output for monitoring public service FM radio broadcasts.

The user initially programs the unit with the supplied software over a USB interface. The T200B-S is compatible with various computer-based navigation programs and chart plotters that accept AIS data sentences over a NMEA 0183 or NMEA 2000 connection.
Note: This product was previously known as the CSB200-S


  • With a built-in Antenna Splitter to simplify installation
  • NMEA 0183 and NMEA 2000 are compatible
  • Compact Aluminium Housing
  • Ideal for Small Commercial and Leisure Craft
  • Automatic Transmission of Vessel’s position, speed and heading to other vessels within VHF range
  • A method of monitoring the position, speed and heading of other AIS vessels within the VHF range
  • Ability to plot the progress, changes in heading and speed of other AIS vessels on a PC or Chart Plotter
  • Transmitter OFF facility to conserve power or for covert use


  • Small commercial boats, fishing boats and leisure markets.
  • It meets the Class B international standard and enables vessels not required to fit a Class A transponder to install an AIS transponder optionally.


  • T200B – Class B AIS Transponder (Standard Non-Splitter Version)
  • AV100 – Stainless Steel Whip Antenna
  • AV300 – Fibreglass VHF Antenna
  • AV400 – Commercial Antenna for AIS
  • AG100 – GPS Antenna

By Comar Systems Ltd

T200B-S Data Sheet