Si-Tex MDA-6 5W SOTDMA Class B AIS Transceiver with Bluetooth and Wi-Fi

The Si-Tex MDA-6 is a high-performance Class B/SO AIS transceiver that delivers Class A-level transmit priority with 5-watt SOTDMA transmission power—more than twice the output of standard Class B AIS units. This enhanced power ensures your vessel is detected earlier and at greater distances, even in demanding or congested waterways where traditional Class B transceivers struggle to maintain network priority.

The MDA-6 broadcasts continuous dynamic data including Speed Over Ground (SOG), Course Over Ground (COG), heading, and hazard reports, providing surrounding vessels with a clearer, more accurate picture of your movements. SOTDMA (Self-Organized Time-Division Multiple Access) technology guarantees your vessel will always transmit and be seen in heavily congested commercial harbors and ports where standard Class B units don't have network priority.

Key Features:

• 5-watt SOTDMA transmission with Class A-level priority for maximum visibility
• Built-in Bluetooth and 802.11 b/g/n Wi-Fi for wireless connectivity to mobile devices
• NMEA 0183 data port and NMEA 2000 (NK2) connectivity for seamless bridge system integration
• Isolated USB interface for secure data transfer and programming
• Integrated GPS and GLONASS satellite navigation receiver
• IP67-rated waterproof housing protects against water, dust, and vibration
• Compact modular design allows flexible installation on any vessel
• Automatic VDR (Voyage Data Recorder) function saves voyage data
• Built-in zero-loss VHF antenna splitter—no second antenna needed

The MDA-6 operates on 9.6-31.2 VDC with low 220mA average power consumption and functions reliably in temperatures from -25°C to +55°C. This fully certified AIS transceiver meets FCC, USCG, and Industry Canada requirements, making it ideal for recreational boaters and commercial operators who demand superior performance and reliability in challenging marine environments.