Teledyne LeCroy WaveJet 300A Series Getting Started Guide - Manual (Page 61)

WaveJet 300A Series
60
WJ-A-GS-E Rev A
WAVEFORM MATH
Standard math functions comprise addition, subtraction, multiplication, and FFT. The
“Math” menu is accessed by pressing the M
ATH front panel button in the VERTICAL
control group.
Source can be any channel, but not another math trace.
Select math operator +, -, x, or FFT.
If FFT is selected, select a window type:

Rectangular -- Normally used when the signal is transient
(completely contained in the time-domain window) or
known to have a fundamental frequency component that is
an integer multiple of the fundamental frequency of the
window.

VonHann -- Reduces leakage and improves amplitude
accuracy. However, frequency resolution is also reduced.

Flat Top -- Provides excellent amplitude accuracy with
moderate reduction of leakage, but with reduced frequency
resolution.