The MD73HR/W is a weatherproof NMEA-based heading repeater, with a true moving tape display.


The MD73HR/W is a weatherproof NMEA-based heading repeater with a true moving tape display. Digital heading data (ship’s heading) may be conveniently displayed at any location on a vessel.

The MD73HR/W can be set to show the course to steer over a ± 30° range on an illuminated LED bar-type display.

Compact and rugged, the MD73HR/W offers a heading repeater solution for locations where the available space is limited and may be either bulkhead or panel mounted. Finished in Jet Black (RAL9005) Fine-texture Powder Coat to complement other marine navigation equipment.

The MD73HR/W from Marine Data: flexible in application, easy to install and simple to maintain.


  • Large Format, High Contrast True Moving Tape Display
  • LED Course to Steer Display
  • NMEA Digital Input
  • Automatic selection and prioritisation of NMEA heading data type
  • Automatic indication of loss of valid heading data
  • Automatic detection of previously lost heading data without requiring a reset
  • True / Magnetic Source Indication
  • Rugged Construction
  • Local Dimming Control
  • Fully sealed to IEC 60945 Exposed Area Classification


  • Repeats the heading display of a ship’s magnetic or gyro compass at any convenient location on a vessel
  • Heading display for an Electro-magnetic Compass System
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