Vector Network Analyzer
R&S
®
FPC
175User Manual 1178.4130.02 ─ 07
18.1.5 Measurement Formats
Access: "Meas" > "Format"
You can select one of several formats in which you can display the results of the VNA
measurements.
Selecting the measurement format
1. Press the "Meas" key to open the measurement menu.
2. Select the "Format" menu item to access the measurement formats.
3. Select the measurement you like.
The availability of measurement formats depends on the measurement as indica-
ted below.
The R&S FPC supports the following measurement formats.
●
"Return Loss"
Shows the magnitude of the reflected power (return loss).
The y-axis shows the return loss in dB. The x-axis represents the selected fre-
quency range.
Available for the reflection and the DTF measurement.
●
"SWR"
Shows the (voltage) standing wave ratio of the DUT.
The SWR is the ratio of the maximum to the minimum voltages that occur in an
electrical transmission line. It is a measure of the reflected power at the input of the
DUT.
The logarithmic y-axis shows the SWR (no unit). The x-axis represents the
selected frequency range.
Available for the reflection and the DTF measurement.
●
"Smith Chart"
Shows the measurement results in the Smith chart.
The Smith chart is a circular diagram that primarily shows impedance or reflection
characteristics of a DUT.
Available for the reflection measurement.
●
"Phase"
Shows the phase characteristics of the DUT.
The linear y-axis shows the phase in degrees. The x-axis represents the selected
frequency range.
Available for the reflection measurement.
●
"Cable Loss"
Shows the magnitude of the reflected power (cable loss).
The cable loss is a measure to determine the attenuation of a cable in a certain fre-
quency range.
The y-axis shows the cable loss in dB. The x-axis represents the selected fre-
quency range.
Available for the cable loss measurement.
●
"Cable Loss (Short+Open)/2"
Measurements and Result Displays
To Next Page
Loading...
Need help?
General
