EPIRB Simulator

Arm, test and release a float-free 406 MHz EPIRB, then follow the alert to the rescue centre.

MEOSAR FLOAT-FREE 406 EPIRB CAT I · GNSS T HRU HRU depth 0.0 m IN BRACKET

A vessel's rail with an EPIRB in its float-free bracket, the sea below and a satellite above.

Mode switch
READY: activates by itself when floating in water.
Strobe Tx / Pass GNSS Fault
Hold 1 s: self-test
Hold 5 s: GNSS
Armed Next —T+0:00

Free practice

    Beacon status

    0406 MHz bursts
    —Next burst
    —Transmitting for
    48 hBattery
    Location
    In bracket
    121.5 MHz
    Off
    GNSS
    Off
    Self-tests run
    0

    Alert chain

      Nothing sent yet.

      Decoded 406 MHz message

      Event log

        Unit label

        Tap a line to check it.

        406 MHz EPIRB · CAT ISV AMALIA · 428 123 456

        Key facts

        406 MHz
        5 W digital burst about every 50 seconds. Carries the beacon's unique ID, and its GNSS position when it has a fix.
        121.5 MHz
        Low-power homing signal. Aircraft and ships use it to find the beacon in the final stage of the search.
        Strobe
        High-intensity white light flashing 20–30 times a minute to help searchers see the beacon at night.
        Battery
        At least 48 hours of operation. Replace by the expiry date on the label.
        HRU
        Hydrostatic release unit. Frees the EPIRB at 1.5–4 m depth so it floats up and activates. Usually replaced every 2 years.
        Category I / II
        Cat I is float-free and activates automatically. Cat II is manual only.
        Testing
        Self-test monthly, annual test, and shore-based maintenance at intervals of no more than 5 years.
        Registration
        Register the beacon with the national authority. The RCC uses it to identify the vessel and call its emergency contacts.
        False alert
        Switch the beacon off and immediately tell the nearest RCC or coast station. Never just switch off and say nothing.