Technical Specification

🧭 General

• Type: IMO-compliant marine GNSS / DGNSS navigator
• Manufacturer: Saab AB
• System architecture: Modular (sensor + CDU display)
• Display (CDU):
  • 7-inch sunlight-readable touch screen
  • Resolution: 1024 × 600
• Waypoints / routes:
  • Up to 4000 waypoints
  • 128 routes

🛰️ GNSS / DGNSS PERFORMANCE

• Channels: 800+ channels
• Supported constellations:
  • GPS
  • GLONASS
  • BeiDou
  • Galileo
• Differential corrections:
  • SBAS (WAAS, EGNOS, MSAS)
  • IALA Beacon (DGNSS)
  • RTCM (external input)
• Update rate: Up to 10 Hz

🎯 ACCURACY

• GNSS (uncorrected):
  • ~1.2 m (RMS) / 2.5 m (95%)
• SBAS / DGNSS:
  • ~0.3 m / 0.6 m
• RTK (optional PRO version):
  • ~1 cm accuracy

📡 DGNSS (BEACON RECEIVER)

• Frequency: 283.5 – 325 kHz
• Bit rates: 50 / 100 / 200 bps
• Range: up to ~250 km (shore-based stations)
• Mode: Automatic / manual

🔌 ELECTRICAL

• Input voltage: 12 – 24 V DC
• Power consumption:
  • Sensor: ~8 W
  • Display (CDU): ~5 W

🔗 INTERFACES

• NMEA (IEC 61162-1/2):
  • 8+1 outputs
  • 5+1 inputs
• Ethernet (IEC 61162-450):
  • Dual LAN (redundant network)
• Other:
  • 1PPS timing output (≈20 ns accuracy)
  • Alarm relay output

⚡ PERFORMANCE & TIMING

• Cold start: < 1 minute
• Reacquisition: < 2 seconds
• Sensitivity: ~-142 dBm

🌡️ ENVIRONMENT / APPROVALS

• Standards:
  • IEC 60945 (marine environmental)
  • IEC 61108-1 / 61108-4 (GNSS/DGNSS)
• Class approvals:
  • DNV, ABS, Lloyd’s Register, BV, RINA

📐 DIMENSIONS & WEIGHT

• Sensor: 261 × 53 × 177 mm / ~1.9 kg
• CDU display: 220 × 125 × 45 mm / ~1.5 kg

⚙️ KEY FEATURES

• Multi-GNSS + multi-frequency receiver
• Built-in DGNSS beacon (for R6 NAV DGNSS version)
• High resilience to multipath and interference
• Seamless integration with:
  • ECDIS
  • Radar
  • AIS systems