VNA GUI Reference
R&S
®
ZNL/ZNLE
332
User Manual 1178.5966.02 ─ 07
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Check performs a consistency check of the displayed mathematical expression
and displays a message.
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"Operands" contains all data traces and memory traces of the active channel
setup.
–
Data and memory traces are identified by their trace names.
–
"Data" denotes the active data trace.
–
"Mem" is the memory trace associated with the active data trace (or the first
created one, if several memory traces are associated with the active data
trace).
–
"StimVal" is the array of stimulus values; see footnote for
.
The trace operands denote
unmodified
data and memory traces. Trace math and
other trace functions ("Smoothing", "Hold", "Shift Trace" etc.) are not taken into
account.
Table 9-2: Effect of the operators on a complex quantity z = x + jy.
+, -, *, /
Basic arithmetic operations
()
Grouping parts of an expression
Lin Mag
|z| = sqrt ( x2 + y2 )
x
y
Exponential, e.g. z^2
dB Mag
dB Mag(z) = 20 * log|z| dB
Arg
Phase φ (z) = arctan ( Im(z) / Re(z) )
Re, Im
x, y (Real and Imag)
log, ln
Common (base 10) or natural (base e) logarithm
Min, Max
Smaller or larger values of all points of two traces, e.g.
Min(Trc1,Trc2)
StimVal *)
Stimulus value*)
tan, atan, sin, asin, cos, acos
Direct and inverse trigonometric functions.
*) The operand "StimVal" can be used for all sweep types. Please note that – as with
all user math operands – only the numerical value without unit is processed in the user
math formula.
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In frequency sweeps "StimVal" provides the stimulus frequency in Hz.
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In time sweeps, "StimVal" is the stimulus time in s.
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In CW mode sweeps, "StimVal" is the number of the point.
Remote command:
CALCulate<Chn>:MATH[:EXPRession]:SDEFine
CALCulate<Chn>:MATH:FORMatted[:EXPRession]:SDEFine
Result is Wave Quantity
"Result is Wave Quantity" controls the conversion and formatting of the mathematic
expression.
This switch is available for
unformatted
trace data (Complex Data) only.
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If "Result is Wave Quantity" is enabled, the analyzer assumes that the result of the
mathematical expression represents a voltage. Examples for voltage-type expres-
Trace Softtool
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