R&S ZVB - Page 707

R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT Command Reference
SCPI Command Reference
Operating Manual 1145.1084.12 – 30 692
KSDfrequency
Calculates the harmonic grid for lowpass time domain transforms according to one of the three alternative
algorithms.
<Chn>
Channel number used to identify the active trace
Parameters
KFSTop – Keep stop frequency and number of points
KDFRequency – Keep frequency gap and number of points
KSDfrequency – Keep stop frequency and approximate frequency gap
*RST value
–
SCPI, Command Types
Device-specific, no query (the command causes an event)
Example:
See CALCulate<Chn>:TRANsform:TIME[:TYPE]
CALCulate<Chn>:TRANsform:TIME:LPASs:DCSParam <numeric_value>
Defines the DC value for lowpass transforms. The command is enabled only if the sweep points are on a
harmonic grid (to be set explicitly or using CALCulate<Chn>:TRANsform:TIME:LPASs).
<Chn>
Channel number used to identify the active trace
<numeric_value>
DC value of the measured quantity
Range [def. unit]
Depending on the measured quantity (–1E5 to +1E5 for S-parameters)
*RST value
0
SCPI, Command
Types
Device-specific, command or query
Example:
*RST; :CALC:TRAN:TIME:STAT ON
Reset the instrument, activating a frequency sweep with S21 as measured
quantity, and enable the time domain transformation for the default trace.
CALC:TRAN:TIME LPAS; TIME:STIM STEP
Select a lowpass step transformation.
CALC:TRAN:TIME:LPAS KFST
Calculate a harmonic grid, keeping the stop frequency and the number of
points.
CALC:TRAN:TIME:LPAS:DCSP 0.2
Set the DC value.
CALC:TRAN:TIME:LPAS:DCSP:EXTR; CALC:TRAN:TIME:LPAS:DCSP?
Extrapolate the measured trace, overwrite the defined DC value, and query the
new value.
CALC:TRAN:TIME:LPAS:DCSP:CONT ON
Switch over to continuous extrapolation (e.g. because you noticed a
discrepancy between the manually entered DC value and the extrapolation and
assume the extrapolation to be more trustworthy).
CALC:TRAN:TIME:RES:EFAC 3