Il 10-Mar-98, The Jacky's scrisse:

> Water conducts sound extremely well , better (and faster) than air.
> I thinking in a very free form mode here but you could rip the
> transducers off a couple of old fish finders and use em for tx and rcv.
> units.
> I think these guys operate above 30 KHz.  You may be able to modulate
> enough info on to the carrier to do slow frame video.

The question is: where can i get them and how can i protect
any other emitter from water without loosing it's capabilities...

--

   - *Alex* -

  http://freepage.logicom.it/azummo/