The Marine Data MD69/22 is a professional bulkhead-mounted NMEA digital heading repeater manufactured in the United Kingdom by Marine Data Systems. Designed for vertical wall mounting on wheelhouse bulkheads, bridge wing pillars, and steering gear compartments, the MD69/22 delivers clear, reliable heading information from shipboard navigation systems to vessel operators and helmsmen.

The unit features a high-visibility dual-scale concentric compass dial (360° outer scale combined with a high-resolution inner expanded dial) offering 0.1° heading resolution. Built into a weatherproof, powder-coated aluminum alloy enclosure, the MD69/22 accepts standard NMEA 0183 heading data feeds from gyrocompasses, satellite compasses, or magnetic heading sensors. It incorporates adjustable red LED backlighting for night-watch operation and supports local or remote dimming controls.

Key Features:
• Vertical Bulkhead Mounting: Designed for secure, space-saving installation on wheelhouse bulkheads, chart tables, and steering stations.
• High-Precision Dual-Scale Display: Concentric dual-card design featuring 360° outer and 10° expanded inner scales for accurate heading readings.
• Universal NMEA 0183 Compatibility: Decodes standard NMEA serial data sentences ($HDT, $HDG, $HDM, $THS) with automatic baud rate detection.
• Adjustable Night Illumination: Dimmable red LED dial illumination prevents night-vision degradation during nocturnal watchkeeping.
• Rugged Weatherproof Enclosure: Heavy-duty marine-grade aluminum housing built to withstand severe marine environmental conditions, shock, and vibration.