SKU: 77382072193

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

Sale price$793.80 Regular price$882.00
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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 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

  • 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

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
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: 77382072193

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Lynn M.
Draper, US
★★★★★ 5
Comfy and decent price.
Size: 11, Color: Raven Nubuck/Quiet Shade/Paloma
These are great and my son said they are comfy from the start!
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Reviewed in the United States on March 12, 2026
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Amazon Customer
Belleville, US
★★★★★ 5
Looks amazing !
Size: 12, Color: British Tan/Dark Chocolate
Looks amazing. I received lots of compliments the first day I wore them.
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Reviewed in the United States on May 30, 2026
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tom chang
Whiting, US
★★★★★ 5
Good comfort, quality and classy
Size: 8.5, Color: Black/Ivory
’ve been wearing Cole Haan dress sneakers for work and travel, and they strike a really good balance between professional and comfortable. The biggest advantage is how lightweight they feel compared to traditional dress shoes. Most styles have sneaker-like cushioning, so you can walk or stand all day without your feet getting destroyed. The design is also versatile and look polished enough for business casual outfits but still casual enough to wear with jeans. They work especially well in office environments where a full formal shoe feels too stiff or outdated.
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Reviewed in the United States on May 10, 2026
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Daniel C
Natrona Heights, US
★★★★★ 5
New Favorite Work Shoe
Size: 9.5, Color: Black/Ivory
These Cole Haan Grand Crosscourt Daily shoes have quickly become my new favorite work shoes. They’re incredibly comfortable right out of the box, with just the right amount of cushioning and support to get through long days on my feet. I love that they look sleek and professional while still feeling casual enough to wear anywhere. The build quality is top-notch—durable materials and solid construction that make them feel like they’ll last a long time. Overall, these shoes strike the perfect balance between comfort, style, and practicality. I can honestly say I look forward to wearing them every day. Highly recommend for anyone who spends a lot of time on their feet but doesn’t want to sacrifice style.
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Reviewed in the United States on February 9, 2026
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Edward Diaz
Natrona Heights, US
★★★★★ 5
Well Made for price and style
Size: 10.5, Color: Black/Ivory
Great fit and very flexible. I also recommend buying shoe savers when purchasing this product. To help with toes wrinkles. The pair itself is stylish and very comfortable. Any purchase of this product will be greatly satisfied.
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Reviewed in the United States on April 16, 2026

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