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P041 RingDown Loss 
 
 
This parameter sets the threshold level in milli-volts within the the ringdown area 
of the transducer. The echo must exceed this threshold above the DATEM trace, 
before it is recognised as a valid echo. Typically this value will be applied to the 
first 0.5m in front of the transducer. 
Values  Min = 0.00 
  Max = 99.99 
 
P042 Display Resolution 
 
 
This parameter determines the rate at which data is transferred from the unit to 
the PC Ultra display when receiving echo traces (regular echo = yes). A lower 
figure gives increased definition but is slower and visa-versa. Please seek advice 
from Pulsar before carrying out any adjustment.  
Values  Min = 1 
  Max = 32 
 
P043 Breakpoint 
 
 
The gain starting point in meters, for signal amplitude decay compensation. This 
is similar to time varied gain. Used in conjunction with P44 to establish gain 
levels. See table below for details.