SI-TEX MDA-2 Metadata Dual Channel Parallel AIS Receiver

Description

Receive AIS traffic information on a compatible MFD, chartplotter, PC, or mobile device without broadcasting your own vessel position with the SI-TEX MDA-2 AIS Receiver. Its dual-channel parallel receiver, built-in GPS, Wi-Fi, and NMEA/USB interfaces make it a flexible option for boaters who only need inbound AIS targets on their navigation system. Need AIS awareness without a transmitter or MMSI programming? The MDA-2 supports NMEA 2000, NMEA 0183, USB, and Wi-Fi in a compact interior-mount enclosure.

Key Specifications

• SI-TEX MDA-2 Metadata dual-channel parallel AIS receiver.
• Receive-only AIS receiver; it does not transmit vessel identity, position, or voyage information.
• Simultaneous reception of AIS channels at 156.025–162.025 MHz.
• Internal GPS receiver.
• NMEA 2000, NMEA 0183, USB, and built-in Wi-Fi connectivity.
• Status LED indicators; no onboard chartplotter display.
• 12V/24V DC input with up to approximately 3W maximum power consumption.
• IPX2 protected enclosure for dry interior installation.
• Operating range of 5°F to 131°F (-15°C to 55°C).
• Approximate dimensions: 5.5 × 3.9 × 1.7 inches; approximate weight: 0.84 lb (0.38 kg).
• Bulkhead or flat-surface mounting.

Integration

The MDA-2 requires an AIS/VHF receiving antenna or approved splitter and a compatible MFD, chartplotter, computer, or mobile app. It is not a VHF voice radio, AIS transceiver, radar, GPS chartplotter, emergency beacon, or collision-avoidance system. Because it receives only, no MMSI is needed for AIS transmission through this unit.

Built-in GPS can supply position data for compatible connected systems, but AIS target reception still depends on antenna height, local VHF conditions, cable quality, interference, distance, and other vessels transmitting valid data. AIS does not display every vessel, buoy, floating object, or hazard.

Installation Notes

Mount the receiver below deck in a dry, accessible location. Use an AIS/VHF antenna or approved splitter, keep RF cabling away from high-current wiring, and connect NMEA 2000, NMEA 0183, USB, or Wi-Fi to the intended display system. Secure the wireless connection with appropriate network settings.

Use correctly fused 12V/24V power and verify GPS status, AIS reception, and target display after installation. Confirm the selected chartplotter or application is configured for the appropriate AIS data input.

Before Ordering

Confirm desired NMEA/USB/Wi-Fi interface, MFD or mobile-app compatibility, AIS antenna or splitter requirements, available 12V/24V supply, dry mounting location, and whether receive-only AIS fits the vessel’s operating needs before ordering.