FURUNO NX-700A NAVTEX Receiver – Complete Technical Guide, Features, Operation, Troubleshooting & Maintenance
FURUNO NX-700A NAVTEX Receiver
Complete Marine Technical Guide for GMDSS and Maritime Safety Communications
Manufacturer
FURUNO Electric Co., Ltd.
Country of Origin
Japan
Product Type
NAVTEX Receiver
Marine Application
Maritime Safety Information (MSI) Reception, GMDSS Communication, Navigational Warnings, Weather Warnings, Search & Rescue Information, Coastal Safety Broadcast Reception
Product Introduction
The FURUNO NX-700A NAVTEX Receiver is a GMDSS-compliant maritime communication system designed to automatically receive and display important navigational and meteorological warnings transmitted by coastal radio stations worldwide.
The NX-700A is widely installed aboard:
- Container Ships
- Oil Tankers
- Chemical Tankers
- Bulk Carriers
- LNG Carriers
- Offshore Support Vessels
- Passenger Ships
The system continuously monitors NAVTEX broadcasts and automatically records safety information, ensuring bridge officers receive critical navigation and weather warnings.
Main Equipment
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The image above shows the complete FURUNO NX-700A NAVTEX Receiver system available through SM MARINE SERVICE™, including display unit, receiver unit, and NAVTEX antennas.
FURUNO NX-700A NAVTEX System
What Is a NAVTEX Receiver?
NAVTEX (Navigational Telex) is an international automated service that broadcasts Maritime Safety Information (MSI) to vessels.
NAVTEX messages include:
- Navigational Warnings
- Weather Warnings
- Meteorological Forecasts
- Search and Rescue Information
- Piracy Alerts
- Coast Guard Notices
- Port and Coastal Safety Notices
The FURUNO NX-700A automatically receives these broadcasts without operator intervention.
How the NX-700A Works
The NAVTEX system operates on internationally designated frequencies:
518 kHz
International NAVTEX broadcasts in English.
490 kHz
National language NAVTEX broadcasts.
4209.5 kHz
Long-range NAVTEX services where applicable.
The receiver continuously monitors broadcasts and automatically stores incoming messages.
Messages are categorized and displayed according to their importance.
NAVTEX Display & Control Units
Main Features
Dual Frequency Reception
Simultaneously monitors multiple NAVTEX frequencies.
Automatic Message Reception
Receives messages without operator intervention.
GMDSS Compliance
Meets SOLAS and IMO requirements.
Message Filtering
Allows operators to select message categories.
Large Message Storage Capacity
Stores a large number of NAVTEX messages for review.
Built-In Printer Support
Provides hard-copy printouts of important messages.
Alarm Functions
Alerts operators to high-priority safety information.
User-Friendly Interface
Simple menu-driven operation for bridge personnel.
Main Components
A complete NX-700A system typically includes:
Display Unit
Provides message display and system control.
Receiver Unit
Processes NAVTEX broadcasts.
NAVTEX Antenna
Receives radio transmissions.
Printer Module
Prints incoming safety messages.
Power Supply Unit
Provides stable operating voltage.
Interface Connections
Connects to bridge communication systems.
NAVTEX Antennas & Receiver Units
Marine Applications
The NX-700A supports:
GMDSS Operations
Mandatory safety communication compliance.
Navigational Safety
Provides navigational warnings affecting voyage safety.
Weather Monitoring
Receives storm and weather warnings.
Search & Rescue Operations
Receives SAR information from coastal authorities.
Coastal Navigation
Provides local hazards and navigational updates.
Voyage Planning
Supports route planning using latest warnings.
Regulatory Compliance
Helps vessels comply with SOLAS requirements.
Common Problems & Troubleshooting
No Message Reception
Possible Causes:
- Antenna Failure
- Frequency Configuration Error
- Receiver Fault
Solutions:
- Verify Antenna Connection
- Check Frequency Settings
- Test Receiver Operation
Weak Signal Reception
Possible Causes:
- Damaged Antenna
- Corroded Connectors
- Poor Installation Location
Solutions:
- Inspect Antenna Condition
- Replace Damaged Cables
- Verify Signal Strength
Printer Not Working
Possible Causes:
- Paper Jam
- Printer Fault
- Communication Failure
Solutions:
- Replace Paper Roll
- Check Printer Connections
- Test Printer Function
Alarm Activation
Possible Causes:
- Urgent NAVTEX Message
- System Error
- Communication Problem
Solutions:
- Review Alarm Message
- Check System Diagnostics
Display Failure
Possible Causes:
- Power Supply Issue
- LCD Failure
- Internal Electronics Fault
Solutions:
- Verify Voltage Supply
- Inspect Internal Components
Maintenance Tips
To ensure reliable operation:
Weekly
- Verify Message Reception
- Review Alarm Functions
Monthly
- Check Antenna Connections
- Verify Message Storage
Quarterly
- Inspect Cabling
- Clean Display Unit
- Test Printer Function
Annual
- Perform Full System Test
- Verify GMDSS Compliance
- Inspect Antenna Performance
Routine maintenance significantly improves reliability and operational readiness.
Typical Shipboard NAVTEX Installation
Why Ships Still Use NAVTEX Receivers
Even with satellite communications, NAVTEX remains essential because:
- Mandatory under SOLAS regulations
- Independent of satellite services
- Provides automatic safety broadcasts
- Offers reliable coastal coverage
- Supports GMDSS compliance
- Requires minimal operator attention
For these reasons, NAVTEX remains a critical component of maritime safety communications worldwide.
Frequently Asked Questions (FAQ)
What is the FURUNO NX-700A?
The NX-700A is an automated NAVTEX receiver used to receive maritime safety information and navigational warnings.
Is the NX-700A GMDSS compliant?
Yes. The system is designed for GMDSS operations and SOLAS compliance.
What frequencies does it receive?
Typically:
- 518 kHz
- 490 kHz
- 4209.5 kHz
Can it print messages?
Yes. The NX-700A supports automatic message printing.
Why is NAVTEX important?
NAVTEX delivers critical safety information directly to vessels without requiring operator intervention.
Short Product Description
The FURUNO NX-700A NAVTEX Receiver is a professional GMDSS communication system designed to automatically receive navigational warnings, weather forecasts, search and rescue information, and maritime safety broadcasts. Widely installed on commercial vessels worldwide, it provides reliable and compliant maritime safety communications.
SM MARINE SERVICE™
Marine Automation & Navigation Equipment Supplier
Available Condition:
• New Equipment
• Used Equipment
• Refurbished Equipment
• Reconditioned Equipment
Stock Location:
• Bangladesh
• China
Services:
• Worldwide Shipping
• Technical Support
• Spare Parts Supply
• Marine Equipment Sourcing
Contact Information
SM MARINE SERVICE™
Samir Market, DT Road, Pahartali, beside CDA Market, Chattogram, Bangladesh
Mobile / WhatsApp / Viber: +88 01818 929292
Email: info@smmarineservice.com
Website: www.smmarineservice.com
User Manual & Technical Resources
Product Manual
Download PDF Click Here