R&S ZNB Series User Manual page 727

®
R&S ZNB/ZNBT
Embedded LO
Select "Embedded LO" if in the related mixer measurement the LO cannot be provided
by the VNA or a connected external generator. Setting this flag makes the LO drive
power range read-only.
Use Fixed Freq
Uncheck "Use Fixed Freq" if you want the LO signal to vary in frequency, which will
enable "LO Freq Min" and "LO Freq Max". Otherwise only "LO Fixed Freq" is enabled.
5.16.4 Distance to Fault Application
With option K3, the R&S ZNB/ZNBT can locate faults and discontinuities on cables and
transmission lines. The measured S
the time domain, and represented in the distance domain. The x-axis of the DtF trace
(derived from S
as peaks above a certain level.
If option R&S ZNB/ZNBT-K3 is not installed on the R&S ZNB/ZNBT, the "Distance to
Fault" application is not available.
To achieve the best distance resolution, set the sweep span as large as possible and
use the
Background information
Refer to
5.16.4.1 Controls on the Distance to Fault tab
The controls on the "Distance to Fault" tab allow you to enable and configure a stan-
dard Distance to Fault (DtF) measurement.
User Manual 1173.9163.02 ─ 62
) shows the distance from the calibrated reference plane; faults appear
ii
Auto Number of Points
Chapter 4.7.3, "Distance-to-fault
-parameter trace is mathematically converted to
ii
to adjust the number of sweep points.
measurements",
GUI reference
Applic softtool
on page 235.
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