The JRC NCR-300A is a dedicated NAVTEX (Navigational Telex) receiver, designed and manufactured by Japan Radio Company (JRC), a leading name in maritime electronics. This specific model is a Type-Approved marine receiver used to automatically receive and print maritime safety information.
The identifier “Printer Type-NRS1NM-1” indicates that this unit is an integrated system, combining the receiver chassis with a built-in thermal or impact printer for hard-copy output. The serial number NR90001 suggests this might be an early or first-unit production model from a specific batch.
Key Functionality: What is NAVTEX?
NAVTEX is a international, automated system for broadcasting maritime safety information (MSI) to ships. The NCR-300A continuously monitors the designated NAVTEX frequency (518 kHz and/or 490 kHz / 4209.5 kHz) and prints out relevant messages.
It receives:
- Navigational Warnings
- Meteorological Warnings and Forecasts
- Search and Rescue (SAR) Alerts
- Ice Reports
- GPS and other Differential GPS (DGPS) corrections (if enabled)
Technical Specifications & Features
- Manufacturer: Japan Radio Co., Ltd. (JRC)
- Model: NCR-300A
- Printer Section: Type NRS1NM-1
- Type: Maritime NAVTEX Receiver with integrated printer.
- Frequency:
- Standard: 518 kHz (International NAVTEX)
- Often includes 490 kHz (National language broadcasts) and 4209.5 kHz.
- Selectivity: Allows the user to filter which stations (by B1 character) and which message types (by B2 character) are printed, preventing paper waste from unwanted or non-essential messages.
- Printing: Provides a permanent paper record of all incoming safety messages. The “NRS1NM-1” designation likely refers to a specific printer mechanism (likely thermal printing).
- Display: Typically features a simple alphanumeric display (LED or LCD) for menu settings, channel selection, and message previews.
- Compliance: Designed to meet IMO (International Maritime Organization) performance standards for NAVTEX receivers under GMDSS (Global Maritime Distress and Safety System).
Application
This unit is designed for installation on:
- Commercial Vessels (Cargo ships, tankers)
- Fishing Vessels
- Large Yachts and Superyachts
- Coastal Stations



















