Instructions
Chapter 2 Functions of the Front Panel of GPSA  RIGOL 
RSA3000E User Guide  2-5 
refer to descriptions in "Parameter Setting". 
Table 2-3 Stop Frequency 
Parameter 
Remarks 
Default 
center frequency+span/2 
Range
[1]
0 Hz to Fmax 
Unit 
GHz, MHz, kHz, Hz 
Knob Step 
span > 0, step = span/200 
span = 0, step = RBW/100 
Min = 1 Hz 
Left/Right Arrow Key Step 
Up/Down Arrow Key Step 
CF step 
Note
[1]
: The range is from 100 Hz to Fmax in non-zero span.  
Freq Offset 
You can set a frequency offset value to account for frequency conversions between 
the device under test (DUT) and the input terminal of the spectrum analyzer. 
Remarks: 
  The change of this parameter only changes the display values of the center 
frequency, start frequency, and stop frequency; but does not affect any 
hardware settings of the spectrum analyzer. 
  You can use the numeric keys, the knob, and the arrow keys on the front panel 
to modify this parameter; also you can modify it on the touchscreen. For details, 
refer to descriptions in "Parameter Setting". 
  To eliminate the frequency offset, you can set the frequency offset to 0 Hz. 
Table 2-4 Frequency Offset 
Parameter 
Remarks 
Default 
0 Hz 
Range 
-500 GHz to 500 GHz 
Unit 
GHz, MHz, kHz, Hz 
Knob Step 
span > 0, step = full span/200 
Left/Right Arrow Key Step 
Up/Down Arrow Key Step 
CF step 
CF Step 
Changes the step size for the center frequency. Changing the center frequency by a 
constant step-size value switches the channel to be measured continuously. 
Remarks: 
  Set a proper CF step value, and then select the center frequency. Use the 










