Birdwatch Note Rating
2023-06-21 20:57:08 UTC - HELPFUL
Rated by Participant: ADF84DB9D1136D6685BC9B9531E1316DAD1BDE744E146D0E0143B14056802D92
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