How the Moon Impacts Subsea Communication Cables: Conclusions, Acknowledgments, and References | HackerNoon
Briefly

This study marks the first experimental analysis of RF signal arrival phase variations on an optically looped-back carrier in a transpacific setting, revealing how tidal forces influence cable length.
Remarkably, the experimental data showed a strong correlation between average tide levels and arrival phase, indicating that while cables are stable in general, they are subject to daily length fluctuations due to tidal movements.
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