User Manual

Chapter 2 Front Panel Operation RIGOL
User’s Guide for DSA800 Series
2-5
Table 2-3 Stop Frequency
Parameter Explanation
Default 7.5 GHz
Range* 0 Hz to 7.5 GHz
Unit GHz, MHz, kHz, Hz
Knob Step Span > 0, step = Span/200
Span = 0, step = VBW/100
Min = 1 Hz
Direction Key Step
CF step
Note: *The range is from 100 Hz to 7.5 GHz in non-zero span.
Freq Offset
You can set a frequency offset value to account for frequency conversions between
the device under test and the input terminal of the spectrum analyzer.
Key Points:
 The change of this parameter only changes the display values of the center
frequency, start frequency and stop frequency; but does not impact any
hardware settings of the spectrum analyzer.
 You can modify this parameter using the numeric keys, knob or direction keys.
For more details, please refer to “Parameter Setting”.
 To eliminate an offset, you can perform Preset operation or set the frequency
offset to 0Hz.
Table 2-4 Frequency Offset
Parameter Explanation
Default 0 Hz
Range -100 GHz ~ 100 GHz
Unit GHz, MHz, kHz, Hz
Knob Step 37.5 MHz
Direction Key Step CF Step