Zinnos ZNC-401 Universal NMEA 0183 ConverterZinnos ZNC 401 Universal NMEA 0183 Converter The Universal NMEA Converter, ZNC 401 converts various synchro, step, analog format signal into NMEA 0183 (IEC 61162 1) standard. This is very useful for interfacing most kinds of Gyrocompass, Anemometer, Speed Log, Rudder used in the worldwide with VDR (Voyage Data Recorder), AIS (Automatic Identification System), ECDIS (Electronic chart Display and Information System). This ZNC 401 Universal NMEA