SIMRAD GC80 Gyro Compass System | Marine Gyro Compass | Ship Heading Reference System | SM MARINE SERVICE™
SIMRAD GC80 GYRO COMPASS SYSTEM
Manufacturer Information
Manufacturer: SIMRAD
Country of Origin: Norway
Equipment Type: Marine Gyro Compass System
Marine Application: True Heading Reference, Navigation & Vessel Control
Product Introduction
The SIMRAD GC80 Gyro Compass System is a professional marine navigation instrument developed to provide highly accurate True North heading information for commercial vessels operating worldwide.
The GC80 is one of the most recognized gyro compass systems used in the maritime industry and is designed to supply stable heading data to critical bridge equipment including Radar, ECDIS, AIS, Autopilot, Dynamic Positioning Systems, and Voyage Data Recorders.
The system is commonly installed onboard:
- Cargo Ships
- Container Vessels
- Bulk Carriers
- Oil Tankers
- Chemical Tankers
- Offshore Support Vessels
- Passenger Ships
- Research Vessels
- Naval Ships
What Is SIMRAD GC80?
The GC80 is a gyro compass system that automatically aligns itself to True North using gyroscopic principles and the Earth's rotation.
Unlike magnetic compasses, the GC80 is not affected by:
- Magnetic Variation
- Magnetic Deviation
- Local Magnetic Interference
The system continuously provides:
- True Heading Information
- Heading Output for Radar
- Heading Data for ECDIS
- AIS Heading Reference
- Autopilot Input
- Navigation System Synchronization
This makes the GC80 one of the most important navigation sensors onboard a vessel.
Main Features
Accurate True North Heading
Provides highly stable and accurate heading information.
Automatic North Seeking
The system continuously seeks and maintains True North alignment.
Radar Integration
Provides heading information required for radar stabilization.
ECDIS Compatibility
Supplies heading data for electronic chart systems.
AIS Integration
Improves AIS target tracking accuracy.
Autopilot Support
Provides steering reference information.
Marine Grade Construction
Designed for continuous operation in harsh marine environments.
Long-Term Reliability
Widely recognized for dependable operation and long service life.
Main Components
1. Master Compass Unit
The heart of the system responsible for generating heading information.
2. Control Unit
Used for monitoring system performance and alarm status.
3. Gyrosphere Assembly
The rotating gyro element that maintains directional stability.
4. Repeater Compass Units
Installed at multiple locations throughout the vessel.
5. Interface Modules
Provide communication with navigation equipment.
6. Power Supply Unit
Ensures uninterrupted operation of the gyro system.
Applications
The SIMRAD GC80 is used for:
- Ocean Navigation
- Coastal Navigation
- Harbor Operations
- Dynamic Positioning
- Radar Stabilization
- ECDIS Operation
- AIS Integration
- Autopilot Control
- Vessel Traffic Monitoring
The system plays a critical role in safe vessel navigation.
Importance of Gyro Compass Onboard Ships
Modern vessels depend heavily on accurate heading information.
Without a reliable gyro compass:
- Radar Performance May Become Unstable
- ECDIS Heading Reference Can Be Lost
- AIS Heading Data May Become Incorrect
- Autopilot Accuracy May Decrease
- Dynamic Positioning Systems May Be Affected
The GC80 provides the heading information required for safe and efficient vessel operations.
Common Problems & Troubleshooting
Gyro Fail Alarm
Possible Causes:
- Gyrosphere Damage
- Internal Sensor Failure
- Power Supply Problem
Solution:
- Inspect Gyro Status
- Verify Input Voltage
- Check Internal Components
Heading Fluctuation
Possible Causes:
- Gyro Instability
- Vessel Vibration
- Internal Calibration Issue
Solution:
- Verify Mounting Stability
- Check Gyro Performance
- Inspect System Settings
No Heading Output
Possible Causes:
- Interface Failure
- Output Board Fault
- Communication Error
Solution:
- Verify Output Configuration
- Check Interface Connections
- Inspect Communication Modules
Repeater Compass Failure
Possible Causes:
- Cable Damage
- Power Failure
- Repeater Unit Fault
Solution:
- Inspect Wiring
- Verify Voltage Supply
- Test Repeater Operation
Startup Failure
Possible Causes:
- Power Supply Issue
- Fuse Failure
- Internal Hardware Problem
Solution:
- Check Input Voltage
- Inspect Fuse Condition
- Verify Power Module Status
Maintenance Tips
Marine engineers should regularly inspect:
- Gyro Heading Accuracy
- Alarm History
- Power Supply Condition
- Gyrosphere Health
- Cooling Ventilation
- Communication Outputs
- Repeater Synchronization
- Interface Connections
Proper maintenance improves:
- Navigation Safety
- Equipment Reliability
- System Lifespan
- Heading Accuracy
Why Ships Still Use SIMRAD GC80
The GC80 remains one of the most respected gyro compass systems in the maritime industry because of:
- Excellent Heading Accuracy
- Reliable Performance
- Proven Marine Technology
- Easy Integration
- Long Operational Life
- Global Service Support
Many commercial fleets continue operating GC80 systems due to their outstanding reputation and reliability.
Frequently Asked Questions (FAQ)
What is the purpose of the SIMRAD GC80?
The GC80 provides True North heading information for navigation and vessel control systems.
Can the GC80 interface with ECDIS?
Yes. It supplies heading data to ECDIS systems.
Does the GC80 support Radar integration?
Yes. Radar stabilization depends heavily on gyro heading information.
Is the GC80 suitable for commercial vessels?
Yes. It is widely used onboard commercial and offshore vessels worldwide.
Do you supply refurbished units?
Yes. SM MARINE SERVICE™ can supply New, Used, Refurbished, and Reconditioned units depending on stock availability.
Short Product Description
The SIMRAD GC80 Gyro Compass System is a professional marine heading reference system designed to provide accurate True North information for Radar, ECDIS, AIS, Autopilot, and navigation systems onboard commercial vessels worldwide.