Command reference
R&S
®
ZNL/ZNLE
798
User Manual 1178.5966.02 ─ 19
Note:
The analyzer allows arbitrary combinations of display formats and measured
quantities; see
Chapter 10.8, "Format softtool"
on page 415 and
CALCulate<Ch>:PARameter...
commands. Nevertheless, it is advisable to check
which display formats are generally appropriate for an analysis of a particular mea-
sured quantity; see
Chapter 9.2.3.3, "Measured quantities and trace formats"
Suffix:
<Chn>
.
Channel number used to identify the active trace
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
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
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
VNA command reference
