Sven Yrvind · video

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Sven Yrvind prepares his backup navigation equipment for a high-latitude voyage by shielding two handheld GPS units and mobile phones against potential lightning strikes.0:12 He installs fresh batteries, rated for use through 2032, into the GPS devices.0:31 To create a Faraday cage, he wraps each unit in bubble plastic for insulation, followed by multiple layers of heavy-duty industrial aluminum foil. He stores the wrapped electronics alongside spare batteries in labeled bags to ensure they remain functional if the primary onboard systems fail. This method provides a redundant navigation strategy for the vessel, Urwind, during long-distance passages.

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