MD71THD Display Head Unit for TMC & EMC Systems allows the magnetic correction coefficients and variation to be entered manually.
Transmitting Heading Device (THD) Systems are becoming increasingly popular as a backup or alternative to a gyro compass. Marine Data offers Transmitting Magnetic Compass (TMC) and Electromagnetic Compass (EMC) solutions. The TMC echoes the ship’s magnetic compass in its binnacle; the EMC directly detects the Earth’s magnetic field as a fully independent electromagnetic compass.
The menu-driven MD71THD Control and Display Unit allows easy calibration of the magnetic heading sensor and manual input of variation and deviation corrections. It provides a crystal clear digital display of the heading in a compact design.
The MD71THD Control and Display Unit from Marine Data is flexible in application, easy to install and maintain.
The Control and Display Unit supplied for a Marine Data Transmitting Heading Device (THD) System (type EMC or TMC)
Automatic compass sensor calibration (TMC)
Displays Heading with True or Magnetic Source Indication
High Contrast OLED Display
2x NMEA 0183 outputs at the rear
Integrates all the key components in a Marine Data Transmitting Heading (THD) System
Calibrates the magnetic heading sensor and allows the manual input of variation and deviation corrections
Provides a NMEA 0183 output of Heading for forwarding to Compass Repeaters and other equipment