This subsystem determines a post-processing of the measured data in order to obtain various display formats.
Command tree: CALCulate<Chn>
Defines how the measured result at any sweep point is post-processed and presented in the graphical display.
Note: The analyzer allows arbitrary combinations of display formats and measured quantities; see Trace - Format and CALCulate<Chn>:PARameter commands. Nevertheless, it is advisable to check which display formats are generally appropriate for an analysis of a particular measured quantity; see Measured Quantities and Display Formats.
|
<Chn> |
Channel number used to identify the active trace. If unspecified the numeric suffix is set to 1.
|
|
Parameters |
See list of parameters below. |
|
*RST value |
MLOGarithmic
|
|
SCPI, Command Types |
Confirmed, command or query
|
|
Example: |
CALC4:PAR:SDEF 'Ch4Tr1', 'S11' Create channel 4 and a trace named Ch4Tr1 to measure the input reflection coefficient S11. The trace becomes the active trace in channel 4. CALC4:FORM MLIN; :DISP:WIND:TRAC2:FEED 'CH4TR1' Calculate the magnitude of S11 and display it in a linearly scaled Cartesian diagram assigning the trace number 2.
|
Assume that the result at a sweep point is given by the complex quantity z = x + jy. The meaning of the parameters is as follows (see also table in CALCulate<Chn>:MARKer<Mk>:FORMat description):
|
MLINear |
Calculate the magnitude of z, to be displayed in a Cartesian diagram with a linear scale |
|
MLOGarithmic |
Calculate the magnitude of z, displayed in a Cartesian diagram with a logarithmic scale |
|
PHASe |
Phase of z, displayed in a Cartesian diagram with a linear vertical axis |
|
UPHase |
Unwrapped phase of z, displayed in a Cartesian diagram with a linear vertical axis |
|
POLar |
Magnitude and phase, displayed in a polar diagram |
|
SMITh |
Magnitude and phase, displayed in a Smith chart |
|
ISMith |
Magnitude and phase, displayed in an inverted Smith chart |
|
GDELay |
Group delay, displayed in a Cartesian diagram |
|
REAL |
Real part (x), displayed in a Cartesian diagram |
|
IMAGinary |
Imaginary part (y), displayed in a Cartesian diagram |
|
SWR |
Standing Wave Ratio (SWR), displayed in a Cartesian diagram |
|
|
x, y, displayed in a polar diagram |
|
|
Magnitude (sqrt(x2 + y2)), displayed in a Cartesian diagram with a logarithmic scale |
Selects the physical unit of the displayed trace.
|
<Chn> |
Channel number used to identify the active trace
|
|
Parameters |
Power or voltage units |
|
*RST value |
POWer
|
|
SCPI, Command Types |
Confirmed, command or query
|
|
Example: |
CALC4:PAR:SDEF 'Ch4Tr1', 'b1' Create channel 4 and a trace named Ch4Tr1 to measure the wave quantity b1. The trace becomes the active trace in channel 4. CALC4:FORM:WQUT VOLT Select voltage units for the created trace (identified by the suffix 4).
|
COMPlex