Hi Brian,

The A027 will only convert the supported datagrams from SeaTalk to NMEA 0183. Some datagrams will not be directly converted to an NMEA 0183 sentence, these are only combined with other data to create other NMEA 0183 sentences. The list with the supported datagrams can be found in the user manual. Unfortunately, the GPS data from Seatalk bus is not fully supported.