R&S ZVL
Command Reference
Instrument-Control Commands
Operating Manual 1303.6580.32-05
395
Create diagram area no. 2.
DISP:WIND2:TRAC:FEED 'CH4TR1'
Display the generated trace in diagram area no. 2.
The measurement parameter is selected by means of the following keywords (the selection depends on
the number of test ports of the analyzer, e.g. S44 is not available on 2-port analyzers):
'S11' | 'S12' | ...
Normal mode S-parameters S<out><in>, where <out> and <in> denote the output and input port
numbers of the DUT.
'Y-S11' | ... 'Z-S11'
| ...
S-parameters converted to matched-circuit admittances and impedances with port numbers like for
normal mode S-parameters.
'KFAC21' | 'KFAC12' |
...
Stability factor K (for unbalanced ports only)
'MUF121' | 'MUF112' |
...
Stability factor µ
1
(for unbalanced ports only)
'MUF221' | 'MUF212' |
...
Stability factor µ
2
(for unbalanced ports only)
*
)
Selecting a parameter Y...<n><m> or Z...<n><m> sets the range of port numbers to be considered for
the Y and Z-parameter measurement to <n>:<m>.
CALCulate<Ch>:PARameter:SELect <string>
Selects an existing trace as the active trace of the channel. All trace commands without explicit reference
to the trace name act on the active trace (e.g.
CALCulate<Ch>:FORMat
).
CALCulate<Ch>:PARameter:SELect
is also necessary if the active trace of a channel has been
deleted.
<Ch>
Channel number.
<string>
Trace name, e.g. 'Trc4'. See
Rules for trace names
in the
Trace Manager
description.
*RST value
–
SCPI, Command
Types
Device-specific, with query (returns the name of the active trace).
Example:
CALC4:PAR:SDEF 'Ch4Tr1', 'S11'
Create channel 4 and a trace named
Ch4Tr1
to measure the input reflection
coefficient S11. The trace is the active trace in channel 4.
CALC4:PAR:SDEF 'Ch4Tr2', 'S22'
Create another trace named
Ch4Tr2
to measure the output reflection coefficient
S22. Again this new trace becomes the active trace in channel 4.
CALC4:PAR:SEL 'Ch4Tr1'
Select the first trace
Ch4Tr1
as the active trace.
CALC4:FORM MLIN
Calculate the magnitude of S11 and display it in a linearly scaled Cartesian
diagram.
