Si-Tex MDA-5 5W SOTDMA Class B AIS Transceiver with Antenna Splitter

The Si-Tex MDA-5 is a high-performance 5-Watt SOTDMA Class B AIS transceiver designed for superior vessel tracking and collision avoidance. Unlike conventional Class B AIS units, the MDA-5 features SOTDMA (Self-Organizing Time Division Multiple Access) technology that provides Class A network priority, ensuring your vessel transmits reliably even in congested commercial harbors and ports.

Key Features:

• 5-Watt transmission power for extended range visibility to other vessels and shore stations
• SOTDMA technology provides Class A transmission priority in crowded waterways
• Integrated zero-loss VHF antenna splitter eliminates the need for a separate AIS antenna
• Built-in 802.11 b/g/n long-range Wi-Fi broadcasts AIS and GPS data to tablets, smartphones, and other devices
• Dual receivers decode all AIS and DSC messages including MOB (Man Overboard) and SART (Search and Rescue Transponder) signals
• Built-in GPS and GLONASS receiver for accurate position reporting
• NMEA-0183, NMEA-2000, and USB connectivity for seamless integration with chartplotters and navigation systems
• IPX7 waterproof rating for reliable operation in harsh marine environments
• Ultra-power efficient design with only 220mA average current draw

Technical Specifications:

• Transmitter Output: 5 Watts
• Frequency Range: 156.025-162.025 MHz
• Input Voltage: 9.6-31.2 VDC
• Operating Temperature: -25°C to +55°C
• Dimensions: 6.8" W × 5.0" H × 2.0" D
• Weight: 0.8 lbs
• Connectors: SO-239 UHF (VHF antenna), TNC (GPS antenna)

Package Includes:

• MDA-5 AIS transceiver
• Commercial-grade external GPS antenna with coaxial cable
• Mounting hardware
• Power and data interface cable
• VHF radio connection cable
• Product information DVD with ProAIS2 software
• User manual and quick start guide

The MDA-5 is fully certified to IEC-62287-2, FCC, and USCG standards and includes a 2-year manufacturer warranty. Note: FCC regulations require all AIS units sold in the United States to be programmed by a qualified technician with valid MMSI registration documentation.