Rohde & Schwarz R&S FSP Series, Operating Manual

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R&S FSP Remote Control – Description of Commands
CALCulate Subsystem
6.90 Operating Manual 1164.4556.12 - 06
6.5.7 CALCulate:MATH Subsystem
The CALCulate:MATH subsystem allows to process data from the SENSe-subsystem in numeric expres-
sions.
The measurement windows are selected by CALCulate1 (screen A) and CALCulate2 (screen B).
CALCulate<1|2>:MATH[:EXPression][:DEFine] (<expr>)
This command defines the mathematical expression for relating traces to trace1.
The CALCulate<1|2>:MATH:STATe command switches the mathematical relation of traces on or off.
The measurement windows are selected via CALCulate1 (screen A) or 2 (screen B).
Parameter: <expr>::= 'OP1 - OP2'
OP1 ::= TRACE1
OP2 ::= TRACE2 | TRACE3
Example:
"CALC1:MATH (TRACE1 - TRACE2)"
'Selects the subtraction of trace 1 from trace 2 in screen A.
"CALC2:MATH (TRACE1 - TRACE3)"
'Selects the subtraction of trace 1 from trace 3 in screen B.
Characteristics: *RST value: -
SCPI: conform
Mode: A-T
CALCulate<1|2>:MATH:MODE LINear | LOGarithmic | POWer
This command selects linear or logarithmic (= video) calculation of the mathematical functions related
to the traces. The calculation of the average is one of the affected functions. The setting is valid for all
measurement windows, i.e. the numeric suffix
<1|2>
of
CALCulate
is irrelevant.
Example:
"CALC:MATH:MODE LIN"
'Switches on the linear calculation.
Characteristics: *RST value: LOG
SCPI: device-specific
Mode: A-T
CALCulate<1|2>:MATH:POSition -100PCT to 200PCT
This command defines the position of the result of the trace mathematics in the selected measurement
window. The indication is in % of the screen height, with 100% corresponding to the upper diagram
border.
Example:
"CALC:MATH:POS 50PCT"
'Sets the position in screen A to the horizontal diagram center.
Characteristics: *RST value: 50 %
SCPI: device-specific
Mode: A-T