RIGOL  Chapter 2 Front Panel Operation 
User’s Guide for DSA800/E Series 
Table 2-47 Noise Bandwidth for C/N Ratio Measurement 
Parameter  Description 
Default  2 MHz 
Range  33 Hz to 2.5 GHz 
Unit  GHz, MHz, kHz, Hz 
Knob Step  Noise BW/100, the minimum is 1 Hz 
Direction Key Step  in 1-1.5-2-3-5-7.5 sequence 
 
5.  Carrier BW 
Set the bandwidth of the carrier to be measured. 
  The carrier bandwidth is related to the noise bandwidth and the range 
available is from noise bandwidth/20 to noise bandwidth×20. 
  You can use the numeric keys, knob or direction keys to modify this 
parameter.  
 
Table 2-48 Carrier Bandwidth for C/N Ratio Measurement 
Parameter  Description 
Default  2 MHz 
33 Hz to 2.5 GHz 
GHz, MHz, kHz, Hz 
Knob Step  Carrier Noise/100, the minimum is 1 Hz 
Direction Key Step  in 1-1.5-2-3-5-7.5 sequence