Birdwatch Note Rating
2023-06-21 23:13:37 UTC - HELPFUL
Rated by Participant: A6A32DE37C9A29CD33E8CA8FED2358CDC06C961CD96AB253802F4895C8CFFC96
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