RIGOL
Chapter 2 Functions of the Front Panel
2-36
VNA User Guide
DTF Meas Setup
Opens the DTF parameter setting menu of the function selected in the
Meas
menu.
The measurement results of DTF is displayed in the upper and lower windows.
⚫
The upper window displays the relationship between transmission loss and
distance. The transmission loss can be displayed in Lin Mag(DTF) and Log
Mag(DTF) formats.
⚫
The lower window displays the relationship between transmission loss and
frequency. The transmission loss can be displayed in three formats: Lin Mag,
SWR, and Return Loss.
Avg Number
Specifies the number of counts (N) for Average, Max Hold, and Min Hold.
It is valid when Trace Type is "Average". The greater the value of N, the smoother the
trace is displayed.
In Average, Max Hold, and Min Hold modes, when performing the single
measurement, the instrument stops sweeping after the sweep count has reached N.
Table 2-40 Average Count
Parameter
Remarks
Default
100
Range
1 to 10,000
Unit
N/A
Knob Step
1
Left/Right Arrow Key Step
Up/Down Arrow Key Step
10
Ref Level
Sets the reference level. It shows the max. power/level value displayed in the current
graticule.
The reference level for DTF measurement is a fixed value 0 dBm and it
cannot be modified.
Align
For details about calibration, refer to "
" in S11.
Remarks:
The calibration is only valid for the DTF measurement item. When switching to S11 or
S21, you need to recalibrate.
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