Teledyne LeCroy WaveRunner МXi-A Getting Started Manual - Manual (Page 84)

WaveRunner Xi-A and MXi-A Oscilloscopes
76 922138-00 Rev A
Pass/Fail Testing
Comparing Parameters
First, touch Analysis  Pass/Fail Setup from the menu bar.
Each Pass/Fail input (Qx) can compare a different parameter result to a user-
defined limit (or statistical range) under a different condition. The conditions
are represented by these comparison operators:
At the touch of a button, test results can also be compared to these standard
statistical limits:

current mean

mean + 1 SD

mean + 3 SD
In Dual Parameter Compare mode, you can compare parameter results
measured on two different waveforms. You can set your test to be true if Any
waveform or All waveforms fit the criterion stipulated by the comparison
condition. Your setup is conveniently shown in the Summary box of the Qx
dialog. For example:
5
The other choice is a power of two algorithm where the record lengths are in the form of 2N. The
power of 2 algorithm generally runs faster than the least primes algorithm. The price that is paid is a
record length that is not the same as the acquired signal. The power-of-two FFT uses the first 2N
points of the record. For example, if you acquire 500 points in your trace, the power-of-two FFT
would only use the first 256 points.