VNA GUI Reference
R&S
®
ZNL/ZNLE
345
User Manual 1178.5966.02 ─ 07
"OK" reduces the frequency span Δf to
Δf = v · c
0
· 100001 / (2.6 · d
stop
), which makes 100001 sweep points sufficient for
unambiguous display (see the formula above). However, this reduction of the fre-
quency span comes at the cost of coarser distance resolution.
"Cancel" (default) leaves the frequency unchanged.
Remote command:
CALCulate<Chn>:TRANsform:DTFault:POINts
Cable Type...
Opens a dialog that allows to select a preconfigured cable type to be used for the cal-
culation of the Distance to Fault traces on the active channel. A cable type is defined
by its relative permittivity (or its velocity factor), and a frequency dependent attenuation
table.
Select "Available Cable Types..." to access the list of predefined and user-defined
cable types (see
Chapter 9.6.7.2, "Available Cable Types... Dialog"
Remote command:
CALCulate<Chn>:TRANsform:DTFault:SELect
Start Cal Unit... (P2) Refl OSM / Start Cal... (P2) Refl OSM
Sets up and runs the "Calibration Unit"/"Calibration Setting" wizard to perform a full
one-port calibration at analyzer port 2 (only port 2 enabled and calibration type "Refl
OSM" preselected).
The calibration serves several purposes:
●
Adjust the reference plane (distance zero).
●
Normalize the trace (total reflection of the signal corresponds to a 0 dB peak).
●
Avoid spurious effects, e.g. peaks on the impulse response trace that are not due
to a fault.
For descriptions of the calibration wizards and the corresponding remote commands
see
and
.
Trace Softtool
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Allice Messtechnik GmbH
