The AT10HD is specifically made for the GB40 Radar Processor to supply NMEA 0183 heading data with high update rate (10Hz) for the MARPA function. Hence, it comes with a 12 pin plug matching the connector on the Radar Processor. 10Hz heading is the only information the AT10HD will transmit via NMEA0183. The AT10HD also converts data received in NMEA 0183 format to SimNet/NMEA 2000 format. The AT10HD is powered from the SimNet bus (or from NMEA 2000 bus via an adapter cable).