Mathematics
R&S
®
RTM20xx
98User Manual 1317.4726.02 ─ 01
7 Mathematics
Mathematical (math) waveforms are calculated data. Each math waveform is defined by
an equation. You can configure and save up to five equations (MA1 – MA5), four of these
equation can be displayed (MA1 – MA4).
Each equation consists of one or two operands and a operator. An operand can be an
input channel, a constant value, or a math waveform with lower number than the oper-
and's number. For example, the MA3 equation can use the results of MA2 and MA1 as
operands.
Each equation and also the set of all defined equations can get a label.
An equation set can be saved to and loaded from any storage device - internal memory
or external USB flash device. The file format is always .FML, and the file size is 526 Byte.
It is also possible to copy the stored equation sets to another storage device with FILE >
"Import/Export Equation Sets". See also: chapter 13.2.1.2, "Importing and Exporting
Data", on page 218.
7.1 Configuring and Using Math Waveforms
Math waveforms are configured using the "Equation Set Editor". Each equation for a math
waveform is configured and displayed individually, and you can save and load the con-
figuration of all five math waveforms as an "Equation Set".
7.1.1 Displaying Mathematical Waveforms
For each of the math waveforms MA1 - MA4 you can define whether it is displayed or not
and which equation is performed in each one. MA5 is always invisible.
1. Press MATH to display the "Mathematics" menu.
2. Press "Equation" and select the mathematical waveform that contains the equation
you want to display.
To check which equation is configured for which channel:
a) Press "Edit Equations". The "Equation Set Editor" is displayed, where you can
see the configuration for each math waveform. Currently displayed waveforms
are indicated by the
symbol.
b) Press "Back" to exit the editor.
3. Press "Visible" until "On" is highlighted.
The selected equation is calculated and the results are displayed as an additional
(mathematical) waveform on the screen. If necessary, change the vertical scaling of
the math waveform to improve the display using the vertical SCALE rotary knob.
Configuring and Using Math Waveforms
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