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Date: Fri, 20 Sep 1996 17:53:00 -0700 (PDT)
From: Bob Favorite <rwfavorite@uc*.ed*>
To: David Strike <strikinc@oz*.co*.au*>
cc: techdiver@terra.net
Subject: Re: Signs

On Sat, 21 Sep 1996, David Strike wrote:

> Ding-Ding. Ding-Ding.  Ding.)  The beauty of line signals is that not only
> are they universally recognised and easy to learn - and remember - but they
> can be readily adapted to underwater sound communication, either between
> surface and diver or diver to diver, by simply tapping 'Pulls and Bells' on
> suitable metal objects beneath the surface.
> Hope this helps

How do you tap a pull on a metal object?  Seems to me you are sort of
limited to bells...maybe you could do different tones on different
size cylinders? ;)

  ooooO         Bob        
 (    )   Ooooo    Favorite              
  \  (   (    )            RVT        
   \  )   )  /                
         (  /

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