Birdwatch Note Rating
2023-06-23 21:20:13 UTC - HELPFUL
Rated by Participant: 80B44C88B459794B0620913AFA248F20777D2019AF9965D9BC16CDAF30E0F77C
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.
All Note Details