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Product Guide AIS transponders allow you to receive data from vessels close to you, but also to transmit your vessel’s identity, position, speed and heading as well as other relevant information to all other vessels equipped with an AIS system within your range. There are 3 types of AIS transponders: Class A, Class B and Class B+. They all interoperate.
Class A AIS transponders are mandated for vessels over 300 tons, fishing vessels over 15m, passenger carrying vessels and for SOLAS Convention
AIS Class B transponders are for recreational craft installation and have a transmission power of 2W (range of about 10 miles).
AIS Class B+ (also called Class B SOTDMA) use the same SOTDMA technology as a AIS Class A transponders and therefore have the same priority when it comes to reserving a slot, thus ensuring that they will always be able to transmit, even in high traffic areas. They have a transmission power of 5W.
Showing all 7 results
AIB1000 – Self-contained AIS Transponder
R17,900.00“AIB1000 is a ruggedized, fully self-contained AIS Class B vessel tracking transponder – ideal for small vessel tracking and monitoring”.
AIT2500 – Class B+ 5W AIS Transponder
R18,000.00“The AIT2500 is a full function Class B+ SOTDMA AIS transponder with NMEA 0183, NMEA 2000 and USB data outputs. It is supplied with a GPS antenna.”
CLA2000 – Class A AIS Transponder
R49,900.00“CLA2000 is the ultimate SOLAS and inland waterway globally approved Class A AIS transponder with a full integrated 5” hi-res colour display. “
iAISTX – AIS Transponder with WiFi
R15,000.00“iAISTX is an AIS transponder with Wi-Fi interface designed specifically for the growing number of boaters who use a tablet for their navigation tasks.”
iAISTX Plus – AIS Transponder with WiFi & NMEA 2000
R17,000.00“iAISTX Plus is an AIS transponder with Wi-Fi interface for tablet & PC navigation and also has a NMEA 2000 interface (with integral drop cable) to integrate with modern plotters, instruments and multi-function displays to provide AIS functionality.”
Nomad 2 – Portable AIS Transponder
R17,900.00“Nomad 2 is a portable AIS navigation solution from Digital Yacht. It is a class B+ 5W AIS transponder with wireless interface built in for tablets and PCs. It ships with a compact combination VHF and GPS antenna.“
Here is a table to help you choose between our current models:
| Features | iAISTX & iAISTX Plus | AIT2500 | AIT5000 | Nomad2 | AIB1000 | CLA2000 |
| Type of AIS & Transmit Power | 5W Class B+ | 5W Class B+ | 5W Class B+ | 5W Class B+ | 2W Class B | 12.5W Class A |
| Transmit Rate | Up to every 5 secs | Up to every 5 secs | Up to every 5 secs | Up to every 5 secs | Every 30secs | Up to every 2secs |
| Guaranteed Time Slot Allocation | Yes | Yes | Yes | Yes | No | Yes |
| Voyage Data | No | No | No | No | No | Yes |
| Power Supply | 12/24V | 12/24V | 12/24V | Cigarette Lighter Plug | Internal Battery or 12/24V | 12/24V |
| External or Built-in GPS | External GPS | External GPS | External GPS | External GPS | Built-in GPS | External GPS |
| Built-in VHF Splitter | No | No | Yes | No | No | No |
| NMEA 2000 | Yes for Plus Version | Yes | Yes | No | No | Yes |
| NMEA 0183 | No | Yes | Yes | No | No | Yes |
| Wi-Fi | Yes | No | Yes | Yes | No | Yes |