Ultra sound transmitter


#1



#2

I used to have one of those, but sold it. I was told that they are either sub launched or air dropped to help facilitate communication between the sub and surface? I could be wrong.


#3

You are right.
We used them to give info to submarine. But we stopped because they are too dangerous for frogmen and even submarines.
JP


#4

Sweet! Why are they dangerous? I never really understood their exact function, but assumed they were some type of relay radio?


#5

No. This is an transmitter only, not a receiver.
It sends an accoustic wave and the waveform is very simple.
But the level is a lot too high and if dropped too close to the submarine it can dammage a lot of things.
Close to a frogmen it can kill him.
Do not forget : the water is not like air, it is uncompressible
JP


#6

Really interesting, I had no clue.

Jason