"> True Heading AIT3000 Mk2
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True Heading

AIT3000 Mk2

The True Heading AIT3000 Mk2 is an AIS transponder. It is normally installed on or near the bridge with VHF/GNSS antennas and bridge data interfaces. It is designed for automatic exchange of vessel identity, position, course, speed and voyage information. The operating principle relies on periodic AIS data transmission and reception over marine VHF channels. The supplied entry gives no additional verified capacity, pressure, power or dimensional figure for this model. Compared with neighbouring models, the relevant differences are transponder class, sensor interfaces, display functions and antenna arrangement; these must be confirmed from the installed documentation rather than inferred from the model designation alone. Service and survey attention should concentrate on own-ship data, GNSS/heading inputs, target reception, antenna system and bridge interfaces. For exact ratings, dimensions, tolerances, test limits and model-specific settings, refer to the manufacturer documentation for the exact figure.

Components & Design

Component data being added…

Technical Data

imo compliant True

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Common failures & inspection points

Transmitter or receiver failure caused by RF, antenna, feeder or power faults, noticed as poor range, failed checks or loss of reception
Antenna/feed-line deterioration caused by corrosion, water ingress or mechanical damage, noticed as intermittent operation or reduced range
Control or audio failure caused by handset, microphone, display, keypad or controller faults, noticed as inability to operate normal functions
Position/identity or data-interface failure caused by wiring or configuration faults, noticed as missing or incorrect safety data
Power-source failure caused by breaker, fuse, converter or emergency-supply faults, noticed as dead equipment or loss of required GMDSS availability

Service & Maintenance

Carry out the permitted operational/self-tests, inspect antennas, feeders, connectors, controls and cooling, and verify normal and emergency power where required. Check vessel identity, position and interfaces appropriate to the equipment type and review recurring alarms or logbook entries. A radio surveyor should confirm the installation and programmed data against the approved radio documentation.

Suppliers & Spare Parts

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Replacement Parts

Carry fuses, approved handsets/microphones or control accessories where applicable, antenna connectors and feeder repair items, selected power-supply components and manufacturer-recommended interface/control spares. The spare scale should match the vessel's declared GMDSS maintenance method.
Equipment Model #131104 · ✓ still in production