J

JRC JUE-87C Inmarsat-C Terminal

Complete Marine Technical Guide for GMDSS Satellite Communication

Product Identification

The JRC JUE-87C Inmarsat-C is a professional maritime satellite communication terminal designed to provide global messaging, distress alerting, safety communications, and Enhanced Group Call (EGC) reception. It is one of the most widely installed GMDSS communication systems aboard merchant vessels, offshore platforms, fishing vessels, and passenger ships.

---

Product Introduction

Reliable communication is essential for safe maritime operations. The JRC JUE-87C Inmarsat-C Terminal provides ships with worldwide satellite communication coverage for operational and emergency communications.

The system allows vessels to:

• Send and receive satellite messages
• Transmit distress alerts
• Receive NAVAREA warnings
• Receive SafetyNET broadcasts
• Receive weather forecasts
• Exchange operational messages
• Meet GMDSS requirements

The system shown in the image includes:

• JUE-87C Display Terminal
• Satellite Antenna Unit
• Keyboard
• Distress Alert Unit
• Communication Processor

---

Main Product Image

The JUE-87C combines communication, safety, and distress alerting functions into a compact and highly reliable GMDSS terminal.

---

What Is an Inmarsat-C Terminal?

An Inmarsat-C terminal is a satellite communication system operating through the Inmarsat global satellite network.

Unlike voice satellite systems, Inmarsat-C primarily uses:

• Text Messaging
• Data Communication
• Distress Alerting
• Safety Information Reception

The system operates using a store-and-forward communication method, making it highly reliable for maritime communication and emergency operations.

---

Typical Inmarsat-C Installation

---

Main Features

Global Satellite Coverage

Provides communication services throughout most of the world's oceans.

GMDSS Compliance

Approved for mandatory carriage under SOLAS requirements.

Distress Alert Function

Allows immediate distress transmission to Rescue Coordination Centers (RCC).

Enhanced Group Call (EGC)

Receives:

• SafetyNET
• NAVAREA Warnings
• Meteorological Warnings
• Search and Rescue Messages

Ship-to-Shore Messaging

Supports communication between ships and shore stations.

Ship-to-Ship Messaging

Allows exchange of operational information.

Position Reporting

Interfaces with GPS systems to transmit vessel position automatically.

Data Communication

Supports fleet management and reporting functions.

---

Satellite Communication Components

---

Main Components

1. Display Unit (DU)

The operator interface used for:

• Message handling
• Alarm display
• Position monitoring
• Distress alert control

---

2. Antenna Unit (AU)

Mounted externally with clear sky visibility.

Functions

• Satellite transmission
• Satellite reception

---

3. Distress Alert Unit

Dedicated emergency distress activation device.

Functions

• Immediate distress transmission
• Emergency alert activation

---

4. Keyboard

Used for:

• Message composition
• Configuration
• Operational control

---

5. Communication Processor

Central processing unit handling:

• Satellite communication
• Message routing
• GPS integration
• EGC reception

---

Internal Communication Architecture

---

Marine Applications

The JUE-87C is used for:

GMDSS Compliance

Mandatory equipment on SOLAS vessels.

Distress Alerting

Emergency communication with rescue authorities.

Weather Information

Reception of meteorological forecasts.

Navigation Safety

Reception of navigational warnings.

Fleet Communication

Communication between vessel and company offices.

Position Reporting

Automated vessel tracking and reporting.

Offshore Operations

Reliable communication in remote offshore locations.

---

Common Problems & Troubleshooting

1. Terminal Not Logging Into Satellite

Possible Causes

• Antenna obstruction
• Satellite coverage issue
• Antenna failure

Corrective Actions

• Verify antenna visibility
• Check antenna cabling
• Restart terminal

---

2. No EGC Messages Received

Possible Causes

• Incorrect NAVAREA selection
• EGC configuration issue
• Antenna fault

Solution

• Verify EGC settings
• Check satellite connection
• Confirm NAVAREA programming

---

3. Distress Alert Failure

Possible Causes

• GPS position unavailable
• Terminal communication fault
• Antenna issue

Solution

• Verify GPS input
• Inspect antenna connections
• Test communication status

---

4. Message Transmission Failure

Possible Causes

• Satellite communication interruption
• Incorrect configuration
• Communication processor issue

Solution

• Check login status
• Verify communication parameters
• Restart system

---

5. Printer or Message Output Failure

Possible Causes

• Printer malfunction
• Interface fault
• Message storage problem

Solution

• Verify printer operation
• Check interface cables
• Review stored messages

---

Maintenance Tips

Proper maintenance is essential for reliable GMDSS operation.

Daily Checks

• Verify terminal login status
• Check satellite communication status
• Confirm GPS position reception

Weekly Checks

• Review EGC message reception
• Verify distress alert readiness
• Check alarm status

Monthly Checks

• Inspect antenna condition
• Verify communication logs
• Test message transmission

Annual Inspection

• GMDSS survey verification
• Antenna performance testing
• Distress alert functionality test
• System calibration and diagnostics

Battery Backup Verification

Ensure emergency power supply remains operational according to SOLAS requirements.

---

Why Ships Still Use Inmarsat-C

Although modern broadband satellite systems are available, Inmarsat-C remains essential because:

GMDSS Compliance

Mandatory on many SOLAS vessels.

Highly Reliable Communication

Simple, proven technology.

Global Maritime Safety Coverage

Provides worldwide distress communication.

Low Bandwidth Requirements

Reliable even in adverse conditions.

SafetyNET Reception

Critical for maritime safety information.

International Recognition

Accepted by maritime authorities worldwide.

---

Frequently Asked Questions (FAQ)

What is the primary function of the JUE-87C?

Satellite messaging, distress alerting, and reception of maritime safety information.

Is the JUE-87C GMDSS compliant?

Yes. It is designed to meet IMO and SOLAS GMDSS requirements.

Can it send distress alerts?

Yes. The system includes dedicated distress alert functionality.

Does it require GPS input?

Yes. GPS position data is typically integrated for distress and reporting functions.

Can it receive weather warnings?

Yes. Through SafetyNET and EGC broadcasts.

---

Short Product Description

The JRC JUE-87C Inmarsat-C Terminal is a professional maritime satellite communication system designed for GMDSS compliance, distress alerting, satellite messaging, SafetyNET reception, and operational communication. Its proven reliability, global coverage, and regulatory compliance make it a trusted communication solution aboard commercial and offshore vessels worldwide.

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

-

+

Buy Now