JRC, NCR-333 NAVTEX Receiver for GMDSS

The JRC NCR-333 NAVTEX Receiver is a modern GMDSS-compliant NAVTEX system designed for installation on SOLAS ships, cargo vessels, tankers, and offshore platforms. It automatically receives and displays Marine Safety Information (MSI) transmitted from coastal radio stations.

The NCR-333 continuously monitors NAVTEX frequencies and automatically receives important safety messages such as:

⚠ Navigational warnings (hazards, route changes)
🌦 Weather forecasts and storm warnings
🚨 Search and Rescue (SAR) alerts
🧊 Ice reports and maritime hazards

👉 Messages are:

Automatically decoded
Displayed on screen
Stored in memory
Forwarded to other ship systems (e.g., ECDIS)

Technical Specification

📡 1. RECEIVER (NAVTEX)

Type: NAVTEX receiver (SOLAS / GMDSS compliant)
Receiving Frequencies:
- 518 kHz (International NAVTEX)
- 490 kHz (Local NAVTEX)
- 4209.5 kHz (HF NAVTEX)
Reception: Simultaneous triple-channel reception
Receiving Mode: F1B (narrowband NAVTEX broadcast)
Sensitivity:
- 1 µV input (≤1%–4% error rate)
Frequency Stability: ±15 Hz
Antenna Input: 50 Ω (NAVTEX antenna)

🖥️ 2. DISPLAY UNIT

Display Type: Black & white LCD (FSTN)
Screen Size: 5.7 inch
Resolution: 320 × 240 pixels
Display Features:
- Adjustable brightness/dimmer
- Multiple font sizes (3 levels)
- Message list and detailed view

💾 3. MEMORY CAPACITY

Temporary Storage:
- 200 messages per channel
- Storage duration: ~70 hours
Permanent Storage:
- Up to 50 messages per channel
- ~500 characters per message
Function:
- Prevents duplicate message display
- Stores settings even after power off

📡 4. ANTENNA SYSTEM

Type: NAVTEX active antenna (optional)
Impedance: 50 Ω
Compatible with:
- Dedicated JRC antenna
- Existing ship antenna systems

🔌 5. INTERFACE / CONNECTIVITY

Serial Interfaces:
- 2 × ports (printer + INS/ECDIS)
Standards:
- IEC 61162-1 (NMEA compatible)
External Connections:
- ECDIS / Integrated Navigation System
- External printer (optional)
- Alarm output terminal