Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 559 / 813

R&S
®
ZVA/ZVB/ZVT CALCulate
1145.1084.12 6.97 E-6
Example:
*RST; CALC:MATH:MEM
Copy the current state of the default trace Trc1 to a memory trace
named 'Mem2[Trc1]'. The memory trace is not displayed.
CALC:MATH:SDEF 'Trc1 / Mem2[Trc1]'
Define a mathematical trace, dividing the data trace by the stored
memory trace. The mathematical trace is not displayed.
CALC:MATH:STAT ON
Display the mathematical trace instead of the active data trace.
Expressions defined via
CALCulate<Ch/Tr>:MATH[:EXPRession]:SDEFine
may contain the
following elements:
Type Complete List Description
Operands <Trace name> |
activeTrc |
Mem[activeTrc] All traces and memory traces of the active
setup |
active trace |
active memory trace assigned to the
active trace
Constants e, pi |
1, -1.2, 8e9 |
1 + 2j, 2 + 1e-9j Constants |
Real values in decimal or exponential
format |
Complex numbers
Operators - + , - , * , / , ^ Basic arithmetic operations; ^ for
exponentiation
Functions linMag (), dBMag (), Arg (), Re (), Im (), log
(), ln (), tan (), atan (), sin (), asin (), cos (),
acos (),
Min ( ... , ... ), Max ( ... , ... ) Mathematical functions with one or two
arguments
Special Functions StimVal () Current stimulus value (see description of
operators for
User Defined Math)
Brackets ( ) Priority of operations in complex
expressions
CALCulate<Ch/Tr>:MATH:FUNCtion NORMal | ADD | SUBTract | MULTiply |
DIVide
Defines a simple mathematical relation between the active trace and the active memory trace to
calculate a new mathematical trace and displays the mathematical trace.
This command places some restrictions on the mathematical expression and the operands. Use
CALCulate<Ch/Tr>:MATH[:EXPRession]:SDEFine to define general expressions.
<Ch/Tr> Channel number used to identify the active trace. If unspecified the
numeric suffix is set to 1.
NORMal
ADD
SUBTract
MULTiply
DIVide Math. trace = active data trace
Math. trace = data + memory
Math. trace = data – memory
Math. trace = data * memory
Math. trace = data / memory
*RST value NORMal
SCPI,
Command Confirmed, with query.