Raytheon Anschütz Standard 22 Gyro Compass

Complete Technical Overview, Working Principle, Features, Maintenance & Troubleshooting Guide

Manufacturer

Raytheon Anschütz GmbH

Country of Origin

Germany

Product Type

Marine Gyro Compass System

Marine Application

Ship Heading Reference, Autopilot Integration, Radar Stabilization, ECDIS Input, AIS Heading Data, Navigation Control

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Product Introduction

The Raytheon Anschütz Standard 22 (STD 22) Gyro Compass is one of the world's most trusted marine heading reference systems. Designed for continuous operation in demanding maritime environments, the STD 22 provides highly accurate true heading information to critical navigation systems onboard ships.

Unlike magnetic compasses, gyro compasses determine True North rather than Magnetic North, making them indispensable for modern navigation.

The Standard 22 has been installed on thousands of vessels worldwide, including:

• Container Ships
• Oil Tankers
• LNG Carriers
• Bulk Carriers
• Offshore Support Vessels
• Passenger Ships
• Naval Vessels

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Main Gyro Compass Unit

(Use Your Original Product Image Here)

The image above shows the Raytheon Anschütz DigitalGyro STD 22 master compass unit available through SM MARINE SERVICE™.

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What Is a Gyro Compass?

A gyro compass is a navigation instrument that uses the principles of gyroscopic motion and the Earth's rotation to find and maintain True North.

Unlike a magnetic compass, a gyro compass:

• Is not affected by magnetic interference
• Provides true heading information
• Offers higher accuracy
• Supports modern navigation systems
• Integrates with bridge equipment

Today, gyro compasses are considered essential navigation equipment on commercial vessels.

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Raytheon Anschütz Standard 22 System

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Working Principle of the Standard 22

The STD 22 operates using:

Gyroscopic Stability

A rapidly spinning gyroscope maintains directional stability.

Earth's Rotation Detection

The system senses the Earth's rotational movement and aligns itself with True North.

Electronic Heading Processing

Internal processors continuously calculate heading corrections and maintain accuracy.

Continuous Heading Distribution

The heading data is distributed to:

• Radar
• ECDIS
• AIS
• Autopilot
• Voyage Data Recorder (VDR)
• Bridge Repeaters

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Internal Gyro Components

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Main Features

True North Reference

Provides accurate true heading independent of magnetic influence.

High Accuracy

Offers excellent heading stability even during long voyages.

Digital Heading Output

Supports multiple navigation equipment interfaces.

Automatic Error Compensation

Continuously compensates for:

• Vessel Motion
• Latitude Changes
• Speed Changes
• Course Alterations

Autopilot Compatibility

Provides heading reference for automatic steering systems.

Radar Stabilization

Improves radar performance and target tracking.

ECDIS Integration

Supports accurate chart orientation and route monitoring.

Long Service Life

Known worldwide for reliability and durability.

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Main Components

A complete Standard 22 system generally includes:

Master Gyro Compass

The main heading sensor.

Control Unit

Monitors system operation and alarm conditions.

Gyro Repeaters

Installed throughout the vessel for heading display.

Distribution Unit

Transmits heading signals to bridge systems.

Power Supply Unit

Provides stabilized operating power.

Interface Modules

Connects to navigation and automation equipment.

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Typical Shipboard Installation

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Marine Applications

The Standard 22 is used for:

Primary Heading Reference

Provides true heading to the vessel's bridge systems.

Radar Systems

Supplies heading information for radar stabilization.

ECDIS Navigation

Supports accurate electronic chart navigation.

AIS Systems

Provides heading data to AIS transponders.

Autopilot Systems

Maintains automatic steering accuracy.

VDR Integration

Records heading information for voyage recording.

Dynamic Positioning Systems

Supports offshore vessel positioning operations.

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Common Problems & Troubleshooting

Gyro Fails to Settle

Possible Causes:

• Power Supply Failure
• Internal Gyro Fault
• Startup Sequence Error

Solution:

• Verify Power Supply
• Check Alarm Logs
• Inspect Internal Components

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Heading Error

Possible Causes:

• Latitude Setting Error
• Speed Input Failure
• Sensor Malfunction

Solution:

• Verify Navigation Inputs
• Check Speed Log Interface
• Confirm Calibration

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Repeater Not Working

Possible Causes:

• Signal Transmission Failure
• Damaged Cabling
• Repeater Fault

Solution:

• Inspect Wiring
• Verify Distribution Unit
• Test Repeater Input Signal

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Excessive Drift

Possible Causes:

• Gyro Aging
• Internal Mechanical Wear
• Improper Adjustment

Solution:

• Perform Maintenance Inspection
• Verify Calibration Parameters

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Alarm Activation

Possible Causes:

• Power Supply Issue
• Sensor Error
• Interface Failure

Solution:

• Review Alarm Codes
• Inspect Connected Equipment

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Maintenance Tips

Routine maintenance should include:

• Verify Heading Accuracy
• Inspect Electrical Connections
• Check Cooling Ventilation
• Test Repeater Units
• Inspect Interface Outputs
• Verify Power Supply Stability
• Review Alarm History
• Clean Control Panels
• Confirm Autopilot Integration
• Conduct Annual Performance Testing

Preventive maintenance significantly improves system reliability and service life.

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Gyro Compass Repeaters & Navigation Integration

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Why Ships Still Use Gyro Compasses

Although GPS provides accurate position information, ships still require gyro compasses because:

• GPS Does Not Provide Continuous True Heading
• Radar Requires Stable Heading Input
• Autopilots Need Accurate Heading Reference
• ECDIS Relies on Heading Data
• AIS Transmits Vessel Heading
• Collision Avoidance Depends on Accurate Navigation Data

For these reasons, gyro compasses remain essential equipment on modern vessels.

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Frequently Asked Questions (FAQ)

What is the Raytheon Anschütz Standard 22?

The Standard 22 is a marine gyro compass used to provide true heading information for ship navigation systems.

What is the difference between a gyro compass and a magnetic compass?

A gyro compass points to True North, while a magnetic compass points to Magnetic North.

Can the STD 22 interface with ECDIS?

Yes. The system is widely integrated with ECDIS installations.

Does it work with autopilot systems?

Yes. The STD 22 is commonly used as the primary heading source for autopilot systems.

Why is gyro heading important?

Accurate heading improves navigation safety, radar performance, and steering control.

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Short Product Description

The Raytheon Anschütz Standard 22 Gyro Compass is a professional marine heading reference system designed to provide highly accurate true heading information for radar, ECDIS, AIS, autopilot, and other bridge navigation equipment. It is widely recognized for reliability, precision, and long-term operational stability.

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

 

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