– How can Navy submarines communicate / navigate but the missing titanic submersible can’t do either.

Question

Context: https://www.bbc.com/news/world-us-canada-65953872

The above titanic submersible that went missing can only send short text messages from the ship to the submersible. From my understanding there is no GPS underwater and radio communication is impossible. How can Navy submarines communicate and navigate while submerged in the ocean but the missing submersible can’t?

In: 121

Answer 1

Can it possibly be a gas leak leading to human poisoning -> lost of control (do submarine have toxic gas? Maybe in the battery?)