Front Panel Key Reference  RIGOL 
User’s Guide for DSA1000 Series 
2.3.3  Demod 
Sets the demodulation of the analyzer. Both AM and FM are available in this device.  
2.3.3.1  Demod 
Sets the demodulation type to AM, FM, or Off, the default is Off.  
 
Key Points: 
  The system will enable a marker automatically and place it at the center 
frequency for AM (or FM) demodulation after you open AM (or FM). 
  You can activate the speaker to output the modulation signal through an audio 
frequency (AF). The frequency and intensity of the audio respectively denotes the 
frequency and intensity of the modulation signal.  
 
2.3.3.2  Demod Setup 
1.  Speaker 
Sets the status of internal speaker. When it is On, you can hear the signal during 
demodulation, the default is Off. 
 
2.  Volume   
Sets the volume of the speaker. 
 
Table 2-22 Volume 
100  
Range  0 to 255 
Unit  N/A 
Knob Step  10 
Direction Key Step  20 
 
3.  Demod Time 
Sets the time interval for the analyzer to complete a signal demodulation after 
each sweep. If the speaker is On, you will hear sound during the demodulation.