| 1. | The pingers are supposed to be activated by contact with water.
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| 2. | The pingers also work well to alert murres, said Peterson.
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| 3. | Unlike the previous version, its pingers are bolted onto the enclosure.
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| 4. | They can locate pingers at depths of up to underwater.
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| 5. | :Note that the " pinger " only works underwater.
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| 6. | The rest of the wreckage has no pingers attached.
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| 7. | Use of the pingers has been shown to significantly reduce marine mammal bycatch.
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| 8. | The pingers are in the eastern debris field.
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| 9. | This permitted the pinger to become detached from the recorder due to crash forces.
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| 10. | The locator listens for the sound emanating from the beacon or " pinger ".
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