JAPAN RADIO CO.LTD. JRC NCR-300A NAVTEX RECIEVER PRINTER NRS1NM-1 NR90001

This unit is a professional marine NAVTEX (Navigational Telex) receiver system designed for the automatic reception of maritime safety information (MSI) as part of the Global Maritime Distress and Safety System (GMDSS) .

System & Component Breakdown

The JRC NCR-300A is an integrated system typically consisting of the main receiver and a built-in thermal printer.

• Main Unit (NCR-300A & NRS1NM-1): This is the core of the system. The model NRS1NM-1 refers to the specific receiver module or variant within the NCR-300A chassis. Its primary function is to automatically tune to the international NAVTEX frequency of 518 kHz to receive MSI broadcasts (navigational warnings, meteorological forecasts, and search and rescue alerts) from coast stations worldwide .
  • Message Management: The system automatically rejects duplicate messages and can be programmed to ignore unwanted messages from specific transmitters or categories, saving paper and preventing clutter .
  • Self-Test & Alarms: Includes a built-in self-test function and provides visual and audible alarms for printer faults (e.g., paper out) or receiver failure .
• Printer Unit (NR90001): The NR90001 is the integrated thermal line printer housed within the NCR-300A mainframe .
  • Operation: It uses heat to print on special thermal paper, ensuring quiet, fast, and reliable operation without the need for ink or ribbons .
  • Output: It provides a permanent hard copy of all received messages, which is essential for the ship’s log and review. Many units feature an automatic paper cutter to separate messages into individual sheets .

Technical Specifications

Here are the key specifications gathered from the search results:

• Brand: Japan Radio Co. Ltd. (JRC)
• Model: NCR-300A
• Receiver Type: NRS1NM-1
• Printer Unit: NR90001
• Approval: IMO / GMDSS approved (Approval No: NR90001, dated 5/11/90)
• Receiving Frequency: 518 kHz (Primary NAVTEX)
• Receiving Mode: F1B (FSK modulation)
• Power Supply: 12 to 24 V DC (Range: 10.8V min to 35V max)
• Weight: 2.5 KG
• Compass Safe Distance: 1.0M
• Characters per Line: 35/40 (7×6 / 7×5 dot matrix)
• Alarms: Audible alarm and blinking LED for “Paper Out”

Key Features & Benefits

• Fully Automatic Operation: Once set up, the system operates unattended, turning on and off at scheduled times to receive broadcasts .
• Reliable Reception: It uses an FSK demodulator and narrow bandwidth filter to ensure excellent reception and rejection of interference .
• Low Maintenance: The thermal printer mechanism has few moving parts and requires no ink, making it highly reliable and reducing maintenance needs .
• Compliance: Built to meet the stringent performance standards of the IMO, making it a standard fitment on SOLAS-class vessels