An Electromagnetic Compass (EMC) System which detects the Earth’s magnetic field and transmits the ship’s Heading over a digital NMEA 0183 connection to remote Heading Repeaters.
The MD53A is an Electromagnetic Fluxgate Compass that directly senses the Earth’s magnetic field, and works as an alternative or backup to a Gyro system.
The Human Input Device in a MARINE DATA Transmitting Heading Device (THD) System. Allows the magnetic correction coefficients and variation to be entered manually. Displays Heading