GUI Reference
R&S
®
ZNB/ZNBT
318
User Manual 1173.9163.02 ─ 53
●
A "Notch" filter rejects all information in the specified time region and passes every-
thing else.
Remote command:
CALCulate<Chn>:FILTer[:GATE]:TIME[:TYPE]
Shape
Selects a gate shape which the R&S
ZNB/ZNBT uses to filter the trace in the time
domain. The drop-down list visualizes how the time gate will affect a constant function
after transformation back into the frequency domain. The selected window is applied to
the active trace. The two red vertical lines represent the "Start" and "Stop" values
defining the size of the time gate.
See also
Remote command:
CALCulate<Chn>:FILTer[:GATE]:TIME:SHAPe
CALCulate<Chn>:FILTer[:GATE]:TIME:WINDow
Side Lobe Level
Defines the side lobe suppression for an "Arbitrary Gate Shape (Dolph-Chebychev)"
gate. The entered value is the ratio of the power of the central lobe to the power of the
first side lobe in dB.
Remote command:
CALCulate<Chn>:FILTer[:GATE]:TIME:DCHebyshev
6.5.7
Distance to Fault Tab
With option K3, the R&S
ZNB/ZNBT can locate faults and discontinuities on cables and
transmission lines. The measured S-parameter trace is mathematically converted to
the time domain, and represented in the distance domain. On the resulting trace, faults
appear as peaks above a certain level.
"Distance to Fault" (DtF) measurements are currently limited to physical
port P2
. The
x-axis of the DtF trace (derived from S22) shows the distance from the calibrated refer-
ence plane.
●
If option K3 is not installed on the R&S
ZNB/ZNBT, the "Distance to Fault" tab is
hidden.
●
To achieve the best distance resolution, set the sweep span as large as possible
and use the
to adjust the number of sweep points.
Background information
Refer to
Chapter 5.7.3, "Distance to Fault Measurements"
Trace Config Softtool
