AIS Transponders

  1. Em-Trak B954 5W SOTDMA Class B AIS Transceiver with WiFi, Bluetooth & VHF Splitter - 430-0015

    $1,304.82
    4
  2. B&G V60-B Fixed-Mount VHF Radio with AIS Receiver/Transmitter - NMEA 2000 - 000-14474-001

    $1,271.00
    4
  3. Em-Trak B953 5W SOTDMA Class B AIS Transceiver with VHF Splitter - 430-0013

    $946.44
    3
  4. Em-Trak B921 2W CSTDMA Class B AIS Transceiver - 430-0001

    $630.63
  5. Em-Trak B923 2W CSTDMA Class B AIS Transceiver with VHF Splitter - 430-0005

    $820.71
  6. Em-Trak B924 2W CSTDMA Class B AIS Transceiver with WiFi, Bluetooth & VHF Splitter - 430-0007

    $1,177.11
  7. Em-Trak B951 5W SOTDMA Class B AIS Transceiver - 430-0009

    $757.35
    1
  8. SI-TEX Metadata Class B AIS Transceiver - MDA-1

    $613.99
    0
  9. Em-Trak B952 5W SOTDMA Class B AIS Transceiver with WiFi & Bluetooth - 430-0011

    $1,052.37
  10. Em-Trak A200 Class A AIS Transceiver - 425-0012

    $2,470.05
  11. B&G V100-B Fixed-Mount VHF Radio with GPS-500 AIS Antenna - 000-15793-001

    $1,907.00
    0
  12. SI-TEX Metadata Class B/SO AIS Transceiver with External GPS Antenna Package - MDA-5

    $1,130.99
    2
  13. Em-Trak B922 2W CSTDMA Class B AIS Transceiver with WiFi & Bluetooth - 430-0003

    $924.66
  14. Em-Trak X100 DSC/VHF Radio with Class B AIS - 431-0001

    $1,682.01
  15. B&G V60-B Fixed-Mount VHF Radio and AIS Transponder with GPS-500 Antenna - 000-14819-001

    $1,377.00
    0
  16. SI-TEX SAS-300 AIS Class B AIS Transceiver - Internal Antenna - SAS-300-1

    $1,495.99
    0
  17. SI-TEX 5W Hybrid Class B AIS - SAS-600

    $1,616.99
    0
  18. SI-TEX SAS-300 AIS Class B AIS Transceiver - Display Only - SAS-300-3

    $751.99
    0
  19. SI-TEX SAS-300 AIS Class B AIS Transceiver - External Antenna - SAS-300-2

    $1,553.99
    0
  20. Em-Trak I100-X Small Vessel Tracker - 417-0077

    $735.57
  21. Em-Trak B200 5W SOTDMA Class B AIS Transceiver with Battery Backup - 429-0007

    $1,388.97

About AIS Transponders

FAQ - Defender - Ais-transponders

What is an AIS transponder?

An AIS transponder, or Automatic Identification System transponder, is a device that broadcasts your vessel's position, course, and speed to other nearby boats and shore stations. This system enhances situational awareness on the water, helping you avoid collisions and navigate safely, especially in crowded or challenging environments. In addition to sending your information, an AIS transponder also receives data from other vessels equipped with AIS. This means you can see the position and movement of nearby boats on your chartplotter or display, giving you a clearer picture of your surroundings. Investing in an AIS transponder is a smart move for any serious boater looking to enhance safety and communication on the water.

How does an AIS transponder work?

An AIS transponder, or Automatic Identification System transponder, works by sending and receiving information about a vessel's position, speed, and course through VHF radio waves. It continuously broadcasts this data to other vessels and shore stations, allowing for real-time tracking and enhancing situational awareness on the water. When your AIS transponder receives signals from nearby vessels, it processes that data and displays it on your chart plotter or compatible device. This means you can see not only your own vessel's information but also that of other nearby boats, which is crucial for collision avoidance and safe navigation, especially in busy or narrow waterways.

How much is an AIS transponder for boats and yachts?

The price of an AIS transponder for boats and yachts can vary significantly based on the features and brand you choose. Generally, you can expect to pay anywhere from $200 to $2,000; basic models are on the lower end, while advanced systems with additional functionalities can hit the higher end of that range. When selecting an AIS transponder, consider your specific needs, such as the size of your vessel and how you plan to use it. Investing in a reliable unit can enhance your safety on the water, making it easier to avoid collisions and navigate busy waterways, so don't skimp on quality.

Where can I buy an AIS transponder for boats and yachts?

You can buy an AIS transponder for boats and yachts from a variety of sources, including marine supply stores, online retailers, and specialty boating websites like Defender.com. Make sure to check for reputable brands and read reviews to ensure you're getting a reliable unit that meets your needs. When purchasing, consider whether you want a standalone unit or one that integrates with your existing navigation systems. Also, keep an eye out for features like built-in GPS, ease of installation, and compatibility with your boat's electronics to get the best value for your investment.

How do I choose an AIS transponder for boats and yachts?

Choosing an AIS transponder for your boat or yacht boils down to understanding your specific needs and the type of boating you do. Consider the size of your vessel, the waters you navigate, and whether you need Class A or Class B AIS; Class A is typically for commercial vessels while Class B is suitable for recreational boats. Next, think about the features that matter most to you, like built-in GPS, NMEA 2000 compatibility, or the ability to integrate with your existing electronics. Don't forget to check the range and performance of the transponder, as well as the ease of installation and any additional costs for antennas or software updates.