Chapter 2 Functions of the Front Panel RIGOL
VNA User Guide 2-35
Ref Level
Indicates the reference level of the receiver channel of the spectrum analyzer. The
reference level for DTF measurement is a fixed value 0 dBm and it cannot be
modified.
Align
For details about calibration, refer to "Align" in S11.
Remarks:
The calibration is only valid for the DTF measurement item. When switching to S11 or
S21, you need to recalibrate.
Clear
Clears the saved calibration coefficients.
Port Extension
For details about the port extension, refer to "Port Extension" in S11.
Cal Kits
For details about calibration kits, refer to "Cal Kits" in S11.
Unit
Sets the length unit for port extension: meter or feet. The default unit is meter.
Stop Distance
Sets the maximum distance that can be measured in DTF.