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P084 Jump CutOff (Software Revisions from 3.6.0 to 6.3.7) 
 
 
This parameter determines the distance, from the face of the transducer, that the 
unit will process the First valid echo, providing that a Larger echo is not seen 
beyond this point. 
Values:  Min. 0.300 
  Max. 99.999 
 
 
P084 Mid Loss (from software revisions 6.8.?) 
 
 
This Parameter now determines the height in milli-volts of the point where the 
near loss becomes the far loss i.e. the loss change point (P083) 
 
Loss Limit Values