RIGOL  Chapter 2 Front Panel Operation 
User’s Guide for DSA800/E Series 
Table 2-54 Volume 
Parameter  Explanation 
Default  100  
Range  0 to 255 
Unit  N/A 
Knob Step  10 
Direction Key Step  20 
 
3.  Demod Time 
Set the time for the analyzer to complete a signal demodulation after each 
sweep. If Earphone is set to “On”, you will hear the demodulated signal 
through the earphone during the demodulation. You can use the numeric keys, 
knob or direction keys to modify this parameter. For more details, please refer 
to “
Parameter Setting”.  
 
Table 2-55 Demod Time 
Parameter  Explanation 
Default  100 ms 
5 ms to 1 ks 
ks, s, ms, us, ns, ps 
Knob Step  5 ms to 10 ms, step=0.1ms 
10 ms to 100 ms, step = 1 ms 
100 ms to 1 s, step = 10 ms 
1 s to 10 s, step = 100 ms 
10 s to 100 s, step = 1 s 
100 s to 1 ks, step = 10 s 
Direction Key Step  in 1, 2, 5 sequence 
 
4.  Signal Gain 
Set the signal gain to adjust the signal energy. When the signal amplitude is 
small, the better demodulation effect can be obtained by adjusting the gain 
value. You can use the numeric keys, knob or direction keys to modify this 
parameter. For more details, please refer to "Parameter Setting".