Rigol DSA815, User Manual

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Chapter 2 Front Panel Operation RIGOL
User’s Guide for DSA800/E 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 = RBW/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