Command reference
R&S
®
ZNB/ZNBT
1061User Manual 1173.9163.02 ─ 62
Parameters:
<Type> MLINear | MLOGarithmic | PHASe | UPHase | POLar | SMITh |
ISMith | GDELay | REAL | IMAGinary | SWR | COMPlex |
MAGNitude | LOGarithmic
See list of parameters below.
*RST: MLOGarithmic
Example:
CALC4:PAR:SDEF 'Ch4Tr1', 'S11'
Create channel 4 and a trace named Ch4Tr1 to measure the
input reflection coefficient S
11
. The trace becomes the active
trace in channel 4.
CALC4:FORM MLIN; :DISP:WIND:TRAC2:FEED 'CH4TR1'
Calculate the magnitude of S
11
and display it in a linearly scaled
Cartesian diagram, assigning the trace number 2.
Manual operation: See "dB Mag" on page 322
Assume that the result at a sweep point is given by the complex quantity z = x + jy.
Then the magnitude of z is calculated as
|z| = sqrt(x
2
+ y
2
)
and in phase notation we have
z = |z| e
j Phase(z)
, where Phase(z) = arctan(y/x).
The meaning of the parameters is as follows (see also table in CALCulate<Chn>:
MARKer<Mk>:FORMat description):
MLINear Displays |z| in a Cartesian diagram
MLOGarithmic
MAGNitude (for compatibility with R&S ZVR ana-
lyzers)
Calculates |z| in dB (= 20 log|z|) and displays it in a
Cartesian diagram
PHASe Calculates Phase(z) in the range between -180° and
+180° and displays it in a Cartesian diagram
UPHase Calculates Phase(z) (unwrapped) and displays it in
a Cartesian diagram
POLar
COMPlex (for compatibility with R&S ZVR ana-
lyzers)
Displays z in a polar diagram
SMITh Displays z in a Smith diagram
ISMith Displays z in an inverted Smith diagram
GDELay For frequency sweeps only
Calculates the group delay at the related sweep
point and displays it in a Cartesian diagram
REAL Calculates Re(z) = x and displays it in a Cartesian
diagram
IMAGinary Calculates Im(z) = y and displays it in a Cartesian
diagram
SCPI command reference
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