Teledyne LeCroy WaveSurfer MXs-B Getting Started Manual - Manual (Page 72)

WaveSurfer MXs-B Oscilloscopes
64 922172-00 Rev A
Using the Math Trace
Overview
Math allows you to perform simple and complex mathematical calculations
on your signal, or on a zoom or memory (reference waveform). The
oscilloscope can be operating in any acquisition mode (Real-Time, RIS, or
Roll Mode) when Math is created.
Math traces are defined with an Operator and a Source. Examples of
Operators include Add, Subtract, Multiply, Divide, and FFT. Sources are
channels, zoom traces, or memories (reference waveforms). Some
Operators require two sources, and some only one source. The oscilloscope
shows how many sources you need to define when you choose the
Operator.
Math is always displayed in a separate half-height grid at the bottom of the
display, separate from your other traces. This makes it easier to interpret
Math information if the math scale is different from the channel scales. If
you also have Zoom traces showing when you turn the Math trace ON,
three grids are shown on the display, each at one-third the height.
Each Math trace can also be zoomed without setting up a separate zoom
trace. This reduces a step, and gives you more capability to understand the
exact feature of interest without having to create another trace. Simply use
the zoom controls in the Math dialog, or use the Vertical and Horizontal
controls for position and scale change in both axes when the Math trace is
active.
One powerful feature about WaveSurfer MXs-B Math traces is that they are
calculated to 16-bit vertical resolution. Therefore, you can vertically zoom
the Math trace and still maintain very high resolution when viewing the
zoomed trace.