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How to Reactivate An EPIRB After An Emergency?

April 5, 2026

Quick Answer

To reactivate an EPIRB after an emergency, ensure the unit is turned off, wait 30 minutes to allow the signal to dissipate, then press the test button to send a new signal. This can be done to test the unit's functionality. If the emergency has passed, turn off the EPIRB and store it securely.

Pre-Reactivation Checklist

Before reactivating an EPIRB, verify that the emergency has passed and it’s safe to send a new signal. Check the unit’s battery level and replace it if necessary, as a low battery can affect signal transmission. Ensure the unit is in a clear line of sight from the horizon to maximize signal effectiveness.

Reactivating the EPIRB

To reactivate the EPIRB, locate the test or activation button, usually marked with a red or orange color. Press and hold the button for 3-5 seconds to send a 10-second test signal. Release the button and verify the unit is sending a signal on the 406 MHz frequency. Wait 30 minutes to 1 hour after sending the test signal before reactivating the unit in case of a subsequent emergency.

Post-Reactivation Procedures

After reactivating the EPIRB, verify that the unit is sending a signal by checking the LED lights or monitoring the unit’s display. Store the EPIRB in a secure location, away from potential sources of damage or interference. Regularly inspect and maintain the unit to ensure it remains functional and ready for emergency use.

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