Argentine Navy loses communication with submarine carrying crew of 44

[natedawg1604]

What types of radio systems would a submarine have? Do they carry some type of emergency beacon?


Argentine Navy loses communication with submarine carrying crew of 44 - ABC News

 

[PrivatelyJeff]

I believe VLF

https://en.m.wikipedia.org/wiki/Very_low_frequency

 

[K2RNI]

Do they carry some type of emergency beacon?

They can, on the old subs they would deploy an emergency buoy to the surface to signal they were in scuttled. I imagine a modern one could contain an EPIRB but don't know how they do it now.