Sitex Metadata AIS Class B TransceiverModel:MDA-1Metadata Class B AIS Transceiver Module Next generation Rmax AIS technology provides state-of-the-art Class B AIS performance in a rugged, compact module. See and be seen with this advanced new SI-TEX AIS solution for any size of vessel. Features: Internal 50-channel GPS smart antenna eliminates need for external GPS Fully IPx7 waterproof rated and measures only 5.5″X3.9X1.9″ Designed for plug-and-play integration with chartplotters, radars, onboard PCs Next generation Rmax AIS technology for fast signal processing, maximum reception range and real-time decoding of all AIS messages Built-in NMEA0183 and NMEA2000 interfaces for easy connectivity Additional USB interface can be used to power module