SKU: 70049361496

Comar T300B-S Class B SOTDMA AIS Transponder with Internal Splitter

Sale price$826.20 Regular price$918.00
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Description

Comar T300B-S Class B SOTDMA AIS Transponder with Internal SplitterSOTDMA Transmission Standard Built in Antenna Splitter to enable use of VHF Radio and AIS simultaneously NMEA 0183 and NMEA 2000 compatible Compact Aluminium Housing Ideal AIS Receiver for Commercial Boats and Leisure Craft Automatic Transmission of Vessels own position speed and heading to other vessels within VHF range Monitor the position speed and heading of other AIS vessels within VHF range Plot the progress changes in heading and speed of other

  • SOTDMA Transmission Standard
  • Built-in Antenna Splitter to enable use of VHF Radio and AIS simultaneously
  • NMEA 0183 and NMEA 2000 compatible
  • Compact Aluminium Housing
  • Ideal AIS Receiver for Commercial Boats and Leisure Craft
  • Automatic Transmission of Vessel’s own position speed and heading to other vessels within VHF range
  • Monitor the position speed and heading of other AIS vessels within VHF range
  • 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
<a class=\"pagebuilder-button-primary\" href=\"https://comarsystems.com/download/t300b-s-datasheet/?wpdmdl=8314&refresh=6364dda0a27661667554720\" target=\"_blank\" style=\"text-align: center; font-weight: normal;\"> <i class=\"fas fa-file-alt\"></i> <span data-element=\"link_text\" style=\"font-weight: 600;\"> Datasheet</span> </a>

Overview

The T300B-S is a compact and rugged SOTDMA AIS Transponder with built-in Antenna Splitter designed for the demands of the small commercial boat fishing boat and leisure markets. It meets the Class ‘B’ (SOTDMA) standard allowing vessels that are not required to fit Class ‘A’ units to voluntarily fit an AIS Transponder.

When connected to an external VHF antenna and a GPS antenna (not supplied) the T300B-S will transmit its own vessel position and data and receive information from other AIS vessels shore stations and navigational aids within 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 unit is initially programmed by the user with the supplied software over a USB interface. The T300B-S is compatible with a range of computer based navigation programs and chart plotters that accept AIS data sentences over a NMEA 0183 or NMEA 2000 connection.

Applications

  • Commercial boat fishing boat and leisure markets
  • Meets the Class ‘B’ SOTDMA international standard
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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 70049361496

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4.0 ★★★★★
Based on 17 reviews
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Product Reviews
P
Verified Purchase
PJJ
Lexington, US
★★★★★ 5
Nice and a great value.
Color: Swift Grey, Size: 1 Pack, Style: USB Receiver
Hey, it works well. Just plug it in and you are ready to go. Only issue, minor, no light or color coding on back to indicate on or off.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
N
Verified Purchase
N. Vance
Boise, US
★★★★★ 5
Simple and efficient
Color: Swift Grey, Size: 1 Pack, Style: USB Receiver
This is a dandy little item. Easy to use straight out of the box, No fancy bells and whistles.but why should a mouse try to replicate commands that are on the laptop?
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
A
Verified Purchase
Amazon Customer
Alexandria, US
★★★★★ 5
Great.
Color: Swift Grey, Size: 1 Pack, Style: USB Receiver
Great deal. Works great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
R
Verified Purchase
Richard
Lexington, US
★★★★★ 4
It's a good working mouse but it's loud clicking and a little small.
Color: Swift Grey, Size: 1 Pack, Style: USB Receiver
I thought I was getting a quite clicking mouse but this is not it. I may have misunderstood the description or confused this mouse with another while researching. It's not a five star for me because it clicks loud and it's small and too easy to accidentally click one of the buttons when you don't want it clicked. The accidental clicking happened a lot and was becoming frustrating. As a working mouse, it does its job and it's reliable. Overall, I like the appearance of it and it feels nice and grips good. I think the price is reasonable for this product. I ended up getting a quite mouse to replace this one, but I am keeping it as a backup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
D
Verified Purchase
David
Pawtucket, US
★★★★★ 5
Very Fast
Color: Red, Size: 1 Pack, Style: USB Receiver
The Logitech M185 Wireless Mouse was exactly what I needed. This mouse works great and included a battery to get you started. No problems using it with my HP EliteBook laptop. I have to say, I was impressed with how fast I got the product. I don't think I could have driven to the store and back any faster. The service and price were worth it. Thanks again Amazon.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026

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