R&S FSH
Distance-to-Fault Mode (R&S FSH-K41)
Configuring Cable and Antenna Tests
Operating Manual 1309.6275.12 - 14
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M
Enter the cable loss.
You can now perform measurements on the temporary cable definition.
Note that as soon as you change any cable parameter or load another cable
model, the temporary data is lost and you have to define it again if you have to
perform further measurements.
After you have defined the cable characteristics, you still have to activate the use of the
customized cable.
M
Press the "Cable Config" softkey.
M
Select the "[ ] User Model" menu item.
If the R&S FSH uses the customized cable model, it shows an [X] at the "User
Model" menu item.
5.2.1.3 Working with a DTF List
The DTF list shows the results of the distance to fault measurement in numerical form.
M
Press the MEAS key.
M
Press the "DTF Settings" softkey.
M
Press the "DTF List" softkey.
The R&S FSH opens a table that lists the peaks it has found during the
measurement.
The table contains the following information.
C
Peak
Shows the peak the results refer to.
C
Distance
Shows the distance from the measurement plane to the peak.
C
Return Loss
Shows the magnitude of the peak.
To limit the information in the list, you can define a threshold for the DTF list, so that
only peaks above a certain level are included in the list.
M
Press the MEAS key.
M
Press the "DTF Settings" softkey.
M
Press the "DTF List Threshold" softkey.
The R&S FSH opens an input field to define a threshold in dB.
M
Enter the threshold you want.
The R&S FSH now only shows the peaks that are above the level you have
entered.
