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 Well, not an 
"exact" location.  But you can definately cut down the search area.  I 
should give one to Lee and Russ to test out with their dive club.  One of 
them could hide it, and then the others could try to locate it.  Use a boat 
to get as close as they think they can get on the surface, and then have them 
dive down to find it. 
  
Jon 
  
  Jon,     
  Although the home built pinger does not meet the ABS standard for a distres 
  locator, A great use for the one we constructed could be to plant this on a 
  site of interest for later exploitation. The low power consumption would allow 
  it to remain active for long durations. This item could be reaquired once 
  you return to the site and hence used again. As you have tested and can 
  varify, it works quite well in providing an exact location to 
  something.                                                                                                     
  David Bartsch
 
  
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