ACTISENSE NDC-4 NMEA MULTIPLEXER MULTIPLAYER NMEA0183 Autopilot Instrument NDC 4ACTISENSE NDC 4 NMEA MULTIPLEXER MULTIPLAYER NMEA0183 PERFECT! GUARANTEE! Works perfectly, fully tested with guarantee. The Actisense NDC 4 allows up to five NMEA 0183 sources to be multiplexed into a single stream. Two flexible ISO Drive outputs allow two different downstream talker baud rates to be created, ensuring maximum system flexibility. It provides complete access to all NMEA 0183 data sources, configurable filters to remove unwanted data