Repeater Compass
Raytheon Anschütz / current manufacturer Anschütz GmbH
Refurbished
Manufacturer: Raytheon Anschütz / current manufacturer Anschütz GmbH
Country of Origin: Germany
Exact Model: 133-407
Product Type: Bearing Repeater Compass / Marine Heading Repeater
Marine Application: Remote heading indication, relative and true bearing observation, bridge-wing navigation, terrestrial and astronomical bearing measurements
The product shown in the supplied image is the Raytheon Anschütz Bearing Repeater Compass Type 133-407. The current Anschütz documentation continues to identify this repeater family for displaying heading received from a gyrocompass, magnetic compass or satellite compass.
The Anschütz 133-407 Bearing Repeater Compass is a professional bridge-navigation instrument designed to reproduce heading information from the vessel's primary compass system at a convenient observation position.
It combines a rotating 360° analogue compass card with a digital heading display. The fixed outer scale can be used to determine relative bearings, while bearing sights can be fitted to the central adapter for accurate terrestrial or astronomical observations. Anschütz also provides compatible bearing brackets and a pelorus stand.
The 133-407 is particularly useful on bridge wings, exposed navigation positions and locations where officers need both a clear visual heading reference and the ability to take bearings.
The 133-407 is a repeater, not the master gyrocompass itself. It receives heading information electrically from the vessel's heading source and reproduces that heading locally.
The official service documentation states that the repeater can indicate heading originating from a gyrocompass, GPS/satellite compass or magnetic compass. For serial operation it can receive absolute heading information through an RS-422 interface and supports IEC 61162/NMEA communication.
A typical installation is:
Gyro / Satellite / Magnetic Compass → Heading Distribution → 133-407 Bearing Repeater → Officer Reads Heading / Takes Bearing
Because the repeater receives absolute digital heading values, synchronization is performed automatically after power-up when the interface is correctly configured.
The 133-407 provides both analogue and digital heading presentation, allowing the navigator to confirm heading quickly while still using the large card for bearing work.
Its main features include a 360° compass card, digital heading display, heading-source identification, dimmable illumination, central bearing-sight mounting, fixed outer 360° relative-bearing scale, selectable 180° offset for double-ended ferries, automatic interface recognition and configurable NMEA telegram handling.
The current Anschütz brochure lists heading inputs such as HDT, HDG and HDM, making the repeater suitable for true and magnetic heading information according to system configuration.
| Specification | Anschütz 133-407 |
|---|---|
| Dimensions | Approx. 254 × 246 × 170 mm |
| Weight | Approx. 9 kg |
| Protection | IP56 |
| Supply Voltage | 24 VDC nominal |
| Supply Range | 18–36 VDC in current brochure |
| Power Consumption | Max. 10 W |
| Operating Temperature | -25°C to +70°C |
| Digital Reading Accuracy | 0.1° |
| Compass Card Reading Accuracy | 0.5° |
| Heading Inputs | HDT, HDG, HDM / supported serial formats |
| Interface | IEC 61162 / NMEA, RS-422 depending configuration |
These values are given in Anschütz technical documentation; the service manual for Type 133-407 also lists 18–32 VDC for the documented revision, so technicians should always verify the exact development state and nameplate before replacement or installation.
The principal visible and service-relevant components include the 360° rotating compass card, digital heading display, fixed bezel, lubber line, central bearing-sight adapter, pushbutton, casing, drive mechanism and electronic interface assembly. The service manual identifies these parts in its construction and spare-parts sections.
The single pushbutton is used for several functions, including dimming, display testing, configuration and card/zero adjustment depending on equipment development state.
The official spare-parts catalog identifies complete versions including 133-407.NG001 E03 and 133-407.NG001 E05, together with replaceable items such as the complete centering piece 133-095.52X01 / part no. 3609918.
The 133-407 is suitable for bridge-navigation applications where the crew requires remote indication of the vessel's heading and the ability to take visual bearings.
Typical installations include bridge wings, pelorus stands and navigation consoles on cargo ships, tankers, bulk carriers, container vessels, passenger vessels and offshore ships.
With a compatible bearing sight, the repeater can be used for terrestrial and astronomical bearings. The official brochure describes standard and telescopic bearing-sight options and provides accessories for fixed or adjustable mounting.
A current DNV certificate for Anschütz compass-bearing devices specifically states that approved bearing devices are designed for use with the 133-407, confirming its continuing role within Anschütz bearing arrangements.
Check the incoming heading-data connection first. The service manual lists disconnected cabling and repeater faults among causes when the heading no longer follows vessel heading changes.
Older operator documentation identifies SCI as a serial-interface fault or invalid received telegram. Check the heading source, RS-422 connection, serial wiring and telegram configuration.
The legacy operator manual identifies Con with no incoming data or a serial interface that is not connected. Verify the source equipment and cable continuity.
When valid heading information is unavailable, the digital display can show horizontal lines rather than a heading value. Investigate the master compass, heading-distribution unit and serial connection.
The repeater provides a zero/card adjustment mode for correcting a mismatch. The official manual warns that the analogue card must be aligned to the digital heading because incorrect adjustment can result in misleading heading information.
The single pushbutton controls card and digital-display brightness. Before suspecting LED or illumination failure, verify the dimmer setting and perform the display test procedure.
Check the 24 VDC supply, protective devices, terminal wiring and connector condition. The equipment is designed to start automatically when supply voltage is applied.
The exact display behaviour depends on the hardware/software development state, so alarm indications should always be checked against the correct manual revision.
Documented indications include:
SCI – Serial interface defective or received telegram invalid.
Con – No data or serial interface not connected.
Horizontal lines – No valid heading available.
Do not invent or clear fault codes without first verifying the serial heading input, telegram format and interface configuration.
The 133-407 requires relatively little routine maintenance, but heading accuracy and communication integrity should be checked periodically.
Inspect the housing, mounting bracket, supply wiring, serial-interface cable, pushbutton, digital display, card illumination and mechanical movement of the card. Because the equipment is IP56, it is suitable for demanding marine locations, but seals and cable entries should still be inspected for deterioration.
When opening the equipment or working on internal electronic parts, follow proper ESD precautions. Anschütz specifically warns that the electronic assemblies are electrostatic-sensitive.
After repair or replacement, compare the analogue card, digital display and master heading before returning the repeater to navigation service.
Typical replacement requirements may include the complete 133-407 repeater, digital display/electronic assembly, rotating compass-card mechanism, centering piece, pushbutton, interface components, wiring/connectors, bezel and mounting accessories.
Verified equipment references include 133-407.NG001 E03, 133-407.NG001 E05 and centering piece 133-095.52X01 / 3609918. Exact spare-part compatibility should be confirmed from the full type designation, development state and serial number before supply.
SM MARINE SERVICE™ can support sourcing of complete units and compatible marine navigation spare parts in New, Used, Refurbished, Reconditioned and Tested Working condition, depending on stock availability, with worldwide shipping.
The 133-407 remains useful because it combines a large visual compass card, digital heading indication and proper bearing capability in a rugged marine instrument.
Anschütz still lists the Bearing Repeater Compass in its current gyrocompass and repeater portfolio, and its contemporary technical documentation continues to describe gyro, magnetic and satellite-compass heading-source support.
For existing ships, replacing a defective repeater with a compatible 133-407 can also avoid modifications to the bridge-wing mounting, bearing-sight arrangement and heading-data wiring.
What is the Raytheon Anschütz 133-407?
It is a marine Bearing Repeater Compass that remotely displays vessel heading from a gyrocompass, satellite/GPS compass or magnetic compass.
Who manufactures the 133-407 Bearing Repeater Compass?
The product originates from the Raytheon Anschütz family and is currently supported under Anschütz GmbH, Kiel, Germany.
Can the 133-407 receive NMEA heading data?
Yes. The service documentation supports IEC 61162/NMEA operation, including configurable heading telegrams such as HDT, HDG and HDM.
What voltage does the 133-407 use?
Current Anschütz technical literature specifies nominal 24 VDC with an 18–36 VDC range and maximum 10 W consumption.
Is the Anschütz 133-407 waterproof?
Its specified enclosure protection is IP56.
Where can I buy an Anschütz 133-407 Bearing Repeater Compass?
SM MARINE SERVICE™ can source complete units and compatible spare parts depending on availability, including used, refurbished and reconditioned equipment for international buyers.
Are spare parts available for the 133-407?
The official service manual contains an illustrated spare-parts section and identifies specific replaceable components and version numbers.
Where can I download the 133-407 manual?
Operator/service documentation and the official Anschütz product brochure are available through the technical-resource links below.
The Raytheon Anschütz / Anschütz 133-407 Bearing Repeater Compass is a professional marine heading repeater with analogue 360° compass-card and digital heading indication. It receives heading from compatible gyro, satellite or magnetic compass systems and supports bearing observations through a centrally mounted bearing sight. The unit operates from a 24 VDC shipboard supply, provides IP56 environmental protection and supports IEC 61162/NMEA heading data.
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