        Simple Underwater Detection System

  Switch  two  actives the SUDS, a system  for  simply  detecting 
objects  under water. A line will appear across the SUDS  display 
to show that the apparatus is working. If you are lucky enough to 
be in an active area a blip will show on the line. Simply  follow 
the  blip right or left as indicated and the sub will home in  on 
objects of sufficient size or density. When the blip is below the 
line,  it  is indicating that the detected  object  is  somewhere 
behind the sub. Happy hunting.