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VNA GUI reference

R&S

ZNL/ZNLE

358User Manual 1178.5966.02 ─ 20

Expression builder

The mathematical expression appears in the upper part of the dialog. The operands

and operators in the expression can be selected from a keyboard and the list of "Oper-

ands":

●

The keyboard supports the entry of numeric values, constants, and mathematical

functions. In addition to the numbers 0 to 9, the decimal point and the constants j

(complex unit), pi (approx. 3.14159) and e (approx. 2.71828), it contains the follow-

ing buttons:

– +/- changes the sign

– The effect of the basic arithmetic operators (/, *, –, +) and the mathematical

functions is described in Table 10-2.

Products of numbers and constants can be entered in abbreviated form, e.g. 2e

for 2*e.

– The Clear, Del, Back buttons are used to correct faulty entries.

– Check performs a consistency check of the displayed mathematical expression

and displays a message.

●

"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 Table 10-2.

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.

Trace softtool

R&S ZNL Series User Manual

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