RIGOL
Chapter 2 Front Panel Operation
User’s Guide for DSA800E Series
2-22
MaxMixL
Set the max input level of the mixer according to the magnitude of the signal.
Key Points:
For a larger input signal, select a smaller maximum mixing level to increase
the input attenuation and reduce the distortion of the signal; for a smaller
input signal, select a larger maximum mixing level to reduce the input
attenuation and noise.
Parameters in inequality (2-3) are always modified on the basis of the
maximum mixing level.
You can use the numeric keys, the knob, or the arrow keys to modify the
parameter. For more details, please refer to "
".
Table 2-12 Maximum Mixing Level
Parameter
Explanation
Default
-10 dBm
Range
-30 dBm to 0 dBm
Unit
dBm, -dBm, mV, uV
Knob Step
1 dBm
Arrow Key Step
10 dBm
Input Impedance
Set the input impedance for voltage-to-power conversions (refer to equation (2-4)).
The default 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.
Note:
"75 Ω" will be shown in the status bar on the screen in this situation.
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