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Gyrocompass Connection
For optimum satellite tracking, you must connect a Gyrocompass to the antenna
system through the gyrocompass interface on the rear of the ACU. If the ship’s gy-
rocompass output is other than NMEA 0183 and NMEA 2000 a separate purchase
of an NMEA converter is required.
Recommended Cable
• NMEA 0183 Gyrocompass Interface Cable (Customer supplied)
• Connector Type: 2 conductors for NMEA 0183, 5 conductors for
NMEA 2000
• NMEA heading sentence: xx HDT (4800 Baud, 8, N,1) If there is no HDT
sentence then use HDM sentence instead.
• NMEA 2000 heading PGN Number = 127250 (Vessel Heading)
Figure 06. Gyrocompass Connection
Strip the cable back 5mm (0.2")
Do not solder the cable