EPIRB (406 MHz) · EPIRB / SART
The Jotron Tron 40GPS is a 406 MHz emergency position-indicating radio beacon. It is normally installed externally near the bridge or survival-craft area in a manual or float-free mounting. It is designed for satellite distress alerting after abandonment or serious casualty. The operating principle relies on transmission of a registered distress identity and, where fitted, position/homing information. Compared with neighbouring models, the relevant differences are Category I/II, float-free/manual mounting, GNSS and homing features; these must be confirmed from the installed documentation rather than inferred from the model designation alone. Service and survey attention should concentrate on registration, battery, self-test, casing/antenna, bracket and hydrostatic release where fitted. For exact ratings, dimensions, tolerances, test limits and model-specific settings, refer to the manufacturer documentation for the exact figure.
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What our service work and the manufacturer documentation say about keeping this model running.
Check battery/service expiry, approved self-test, casing, antenna, activation arrangement and identification/registration. Verify mounting, lanyard, pole or hydrostatic-release arrangement where applicable and ensure deployment is unobstructed. Do not generate a live distress transmission during routine inspection unless an authorized test procedure specifically requires it.
Internal repair is normally an authorized-service task. Carry only manufacturer-approved external mounting, lanyard, bracket, pole or hydrostatic-release parts where shipboard replacement is permitted, and schedule battery/service replacement before expiry.
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