Birdwatch Note Rating
2023-06-21 18:18:47 UTC - SOMEWHAT_HELPFUL
Rated by Participant: E8835A25E792A2F9D48396655246B9B75A940C25F1BAB8F995AA3D26BA1CD0C5
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