Birdwatch Note Rating
2023-06-21 15:35:43 UTC - HELPFUL
Rated by Participant: 6BAF2A9B27D5A0D645134E3DB7712FAD3C8754FBAFDC72F074C927CE193583BE
Participant Details
Original Note:
Starlink operates in the 10.7 to 12.7 GHz band. https://radionavlab.ae.utexas.edu/wp-content/uploads/2023/01/starlink_structure.pdf Penetration depth of 2.45GHz in water is <8cm and falls off with increasing frequency. https://cober.com/wp-content/uploads/2018/06/Microwave-Technology-Cober-website-v08-23-17.pdf Therefore, Starlink cannot be used to communicate with an underwater submarine.
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