Rohde & Schwarz 1145.1010.04/05/06, Руководство по эксплуатации

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R&S
®
ZVA/ZVB/ZVT CALCulate
1145.1084.12 6.81 E-6
Parameters See list of parameters below.
*RST value DEF – This means the format of the trace no. <Ch/Tr> (MLOG after
*RST); see
CALCulate<Ch/Tr>:FORMat
.
SCPI,
Command
Types Device-specific, command or query
Example:
Suppose that the active setup contains an active trace no. 1 (see
example for
CALCulate<Ch>:PARameter:SELect
).
CALC:MARK ON; CALC:MARK:FORM?
Create marker 1, assign it to the trace no. 1 and query its format. The
analyzer returns the format of the active trace.
Assume that the marker result is given by the complex quantity z = x + jy. The meaning of the
parameters is as follows:
MLINear |z| = sqrt ( x2 + y2 )
MLOGarithmic
MDB
|z| = sqrt ( x2 + y2 )
dB Mag(z) = 20 * log|z| dB
PHASe
φ
(z) = arctan ( Im(z) / Re(z) )
POLar
COMPlex
x, y (Real and Imag)
GDELay
Group Delay, – d
φ
(z)/d
ω
REAL
x
IMAGinary y
SWR
Standing Wave Ratio, SWR = (1 + |z|) / (1 – |z|)
LINPhase
MLPhase
Lin Mag and Phase, |z|, arctan ( Im(z) / Re(z) )
LOGPhase
MDPhase
dB Mag and Phase, 20 * log|z| dB, arctan ( Im(z) / Re(z) )
IMPedance
R, X, L or C (depending on sign(X))
ADMittance G, B, L/C (depending on sign(X))
CALCulate<Ch/Tr>:MARKer<Mk>:FUNCtion:BWIDth <x dB Bandwidth>
Defines the bandfilter level, i.e. the minimum excursion for the bandpass and bandstop peaks.
Use
CALCulate<Ch/Tr>:MARKer<Mk>:BWIDth
to set the x dB Bandwidth and query the
results of a bandfilter search. Note the sign convention for input values.
<Ch/Tr> Channel number used to identify the active trace.
<Mk> Marker number in the range 1 to 10. This numeric suffix is ignored and
may be set to any value because the bandfilter search functions
always use markers Mkr1 to Mkr4.
<x dB
Bandwidth> x dB Bandwidth parameter.