RIGOL Chapter 5 Functions of the Front Panel of VSA
5-44 RSA3000E User Guide
Input/Output
Sets the input/output interface.
Input Z
Sets the input impedance for voltage-to-power conversions. The default input
impedance is 50 Ω. To measure a 75 Ω device, you should use a 75 Ω to 50 Ω adapter
(option) supplied by RIGOL to connect the analyzer with the system under test, and
then set the input impedance to 75 Ω.
Ext Gain
Compensates for gain or loss in the measurement system outside the instrument.
Remarks:
The value does not affect the trace position, but will modify the parameters such
as reference level readout and the marker amplitude readout.
You can use the numeric keys, the knob, or arrow keys to modify this parameter;
you can also use the touch screen to modify the parameter.
Table 5-23 External Gain
Left/Right Arrow Key Step
Ext Trigger 2
Sets the external trigger 2 [TRIGGER IN/OUT] to be the "input" or "output"
interface.
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