Technical Specification

📊 GENERAL

• Type: Class B/SO AIS Transceiver (TX + RX)
• Technology: SOTDMA (Self-Organized TDMA)
  • Same transmission priority as Class A ships
• Function: Transmit + Receive AIS (real-time vessel tracking)

📡 AIS / RADIO PERFORMANCE

• Transmit Power: 5 Watts (high power)
• Channels:
  • 161.975 MHz (AIS 1)
  • 162.025 MHz (AIS 2)
• Frequency Range: 156.025 – 162.025 MHz
• Channel Spacing: 25 kHz
• Modulation:
  • AIS: GMSK (9600 bps)
  • DSC: AFSK (1200 bps)
• Receiver Sensitivity: Better than –107 dBm

🚀 PERFORMANCE FEATURES

• ✔️ SOTDMA priority (Class A-like transmission) → always visible in busy ports
• ✔️ Long-range transmission (5W) → much stronger than standard 2W Class B
• ✔️ Dual receivers → decodes AIS + DSC + MOB + SART
• ✔️ Voyage Data Recorder (VDR) → stores ~30 days data

🛰️ GPS / NAVIGATION

• Built-in GNSS: GPS + GLONASS (72-channel)
• Includes:
  • Internal GPS antenna
  • External GPS antenna (commercial installs)

🔌 CONNECTIVITY

• NMEA 2000 (Micro-C)
• NMEA 0183 (dual ports)
• USB (isolated)
• Wi-Fi (802.11 b/g/n) → send AIS data to tablets/apps
• Silent mode input (external switch)

📡 ANTENNA SYSTEM

• Built-in antenna splitter (zero loss)
  • Share one VHF antenna (no second antenna needed)
• VHF Connector: SO-239
• GPS Connector: TNC

⚡ ELECTRICAL

• Supply Voltage: 9.6 – 31.2 V DC
• Current Consumption: ~220 mA average
• Power Efficiency: Ultra-low consumption design

📐 PHYSICAL

• Dimensions: 6.8″ × 5.0″ × 2.0″ (≈ 173 × 127 × 51 mm)
• Weight: ~0.8 lb (≈ 0.36 kg)
• Design: Black-box module

🌊 ENVIRONMENTAL

• Waterproof Rating: IP67 / IPX7
• Operating Temperature: –25°C to +55°C
• Compliance:
  • IEC 62287-2
  • FCC / USCG certified