GUI reference
R&S
®
ZND
396
User Manual 1173.9557.02 ─ 61
Figure 5-14: Automatic calibration: inline calibration system
Calibration Sweep Diagrams
During the calibration sweep, each diagram contains a single S-parameter trace and a
typical result trace for the measured calibration standard.
If switch matrices are involved, a sweep is performed for every possible signal path
and for each of these paths a separate S-parameter trace is shown (see
ter 4.7.20.5, "Multiple paths and calibration"
The purpose of the typical result traces "Trc1"" and "Trc2" is to avoid connection errors
and to track hardware problems: if the correct standard type is measured, and every-
thing is properly connected, then the measured traces are expected to be similar to the
typical trace.
The S-Parameter traces are labeled P[
j
_
i
]_<standard type> S
ij
, where
j
indicates the
input (test) port and
i
indicates the output port, e.g. P[1_2]_Unknown_Through S21.
If switch matrices are involved, the label also indicates:
●
which VNA port
b
is switched to the input port
j
and
●
which VNA port
a
is switched to the output port
i
Instead of a single S
ij
trace we have multiple traces S
ij
v
a
t
i
v
b
t
j
. E.g., "S21v1t1v2t2"
means that S21 is measured with VNA port 1 connected to the input port and VNA port
2 connected to the output port.
Start Cal Sweep / Abort Sweep
Starts the calibration sweep for the related port assignment or aborts it.
Remote command:
[SENSe<Ch>:]CORRection:COLLect:AUTO:ASSignment<Asg>:ACQuire
Detect Ports & Start Cal
Performs the "Detect Port Assignment" and "Start Cal Sweep" functions, one after the
other.
Note:
For a unidirectional R&S
ZND (see
on page 80) auto-detection at VNA port 2 does not work.
Cal softtool
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