Instructions
RIGOL  Chapter 2 Front Panel Operation 
User’s Guide for DSA800/E Series 
2-36 
Table 2-20 Average times 
Parameter  Explanation 
Default  100 
Range  1 to 1000 
Unit  N/A 
Knob Step  N/A 
Direction Key Step  N/A 
Trace Math 
1.  Function 
Set the computational method of the math trace.  
  A-B: subtract Trace B from A     
  A+Constant: add a constant to Trace A 
  A-Constant: subtract a constant from Trace A 
2.  A 
Select “T1”, “T2” or “T3”. Assign a value to A from Trace1, Trace 2 or Trace 3. 
The default is Trace 1 (T1).   
3.  B 
Select “T1”, “T2” or “T3”. Assign a value to B from Trace1, Trace 2 or Trace 3. 
The default is Trace 2 (T2).   
4.  Constant 
Set the value of the constant. 
You can use the numeric keys to modify this parameter. Please refer to 
“Parameter Setting” for more details.   
Table 2-21 Constant in the math operation 
Parameter  Explanation 
Default  0 dB 
Range 
-300 dB to 300 dB 
Unit 
dB 










